diff --git "a/Baekjoon Online Judge/11_\346\234\210_November.py" "b/Baekjoon Online Judge/11_\346\234\210_November.py"
new file mode 100644
index 0000000..9476980
--- /dev/null
+++ "b/Baekjoon Online Judge/11_\346\234\210_November.py"	
@@ -0,0 +1,7 @@
+a = int(input())
+b = int(input())
+
+if a + (7 * b) <= 30:
+    print(1)
+else:
+    print(0)
diff --git "a/Baekjoon Online Judge/2023_\354\235\200_\353\254\264\354\227\207\354\235\264_\355\212\271\353\263\204\355\225\240\352\271\214.py" "b/Baekjoon Online Judge/2023_\354\235\200_\353\254\264\354\227\207\354\235\264_\355\212\271\353\263\204\355\225\240\352\271\214.py"
new file mode 100644
index 0000000..b3410ef
--- /dev/null
+++ "b/Baekjoon Online Judge/2023_\354\235\200_\353\254\264\354\227\207\354\235\264_\355\212\271\353\263\204\355\225\240\352\271\214.py"	
@@ -0,0 +1,9 @@
+count = int(input())
+
+for _ in range(count):
+    number = int(input())
+    target = number + 1
+    if target % int(str(number)[-2:]) == 0:
+        print("Good")
+    else:
+        print("Bye")
diff --git "a/Baekjoon Online Judge/2033_\353\205\204_\353\260\210_\355\210\254\355\221\234.py" "b/Baekjoon Online Judge/2033_\353\205\204_\353\260\210_\355\210\254\355\221\234.py"
new file mode 100644
index 0000000..2dc71f0
--- /dev/null
+++ "b/Baekjoon Online Judge/2033_\353\205\204_\353\260\210_\355\210\254\355\221\234.py"	
@@ -0,0 +1,15 @@
+PROMISES = [
+    "Never gonna give you up",
+    "Never gonna let you down",
+    "Never gonna run around and desert you",
+    "Never gonna make you cry",
+    "Never gonna say goodbye",
+    "Never gonna tell a lie and hurt you",
+    "Never gonna stop",
+]
+
+loop = int(input())
+if all(input() in PROMISES for _ in range(loop)):
+    print("No")
+else:
+    print("Yes")
diff --git a/Baekjoon Online Judge/27323.py b/Baekjoon Online Judge/27323.py
new file mode 100644
index 0000000..39b22f4
--- /dev/null
+++ b/Baekjoon Online Judge/27323.py	
@@ -0,0 +1,9 @@
+import math
+
+
+def solution(number: int) -> int:
+    return math.factorial(number)
+
+
+if __name__ == "__main__":
+    print(solution(number=int(input())))
diff --git a/Baekjoon Online Judge/27866.py b/Baekjoon Online Judge/27866.py
new file mode 100644
index 0000000..8c43991
--- /dev/null
+++ b/Baekjoon Online Judge/27866.py	
@@ -0,0 +1,8 @@
+def solution(target_string: str, index_: int) -> str:
+    return target_string[index_ - 1]
+
+
+if __name__ == "__main__":
+    target_string = input()
+    index_ = int(input())
+    print(solution(target_string, index_))
diff --git "a/Baekjoon Online Judge/2_\346\241\201\343\201\256\346\225\264\346\225\260_Two_digit_Integer.py" "b/Baekjoon Online Judge/2_\346\241\201\343\201\256\346\225\264\346\225\260_Two_digit_Integer.py"
new file mode 100644
index 0000000..ee87dcf
--- /dev/null
+++ "b/Baekjoon Online Judge/2_\346\241\201\343\201\256\346\225\264\346\225\260_Two_digit_Integer.py"	
@@ -0,0 +1,4 @@
+a = int(input())
+b = int(input())
+
+print(a * 10 + b)
diff --git "a/Baekjoon Online Judge/AI_\354\204\240\353\217\204\353\214\200\355\225\231.py" "b/Baekjoon Online Judge/AI_\354\204\240\353\217\204\353\214\200\355\225\231.py"
new file mode 100644
index 0000000..66e76bb
--- /dev/null
+++ "b/Baekjoon Online Judge/AI_\354\204\240\353\217\204\353\214\200\355\225\231.py"	
@@ -0,0 +1,2 @@
+target_year = int(input())
+print(target_year - 2024)
\ No newline at end of file
diff --git a/Baekjoon Online Judge/A_B.cpp b/Baekjoon Online Judge/A_B.cpp
new file mode 100644
index 0000000..4c009e0
--- /dev/null
+++ b/Baekjoon Online Judge/A_B.cpp	
@@ -0,0 +1,12 @@
+#include <iostream>
+
+int sum(int A, int B) {
+    return A + B;
+}
+
+int main() {
+    int A, B;
+    std::cin >> A >> B;
+    std::cout << sum(A, B) << std::endl;
+    return 0;
+}
diff --git a/Baekjoon Online Judge/A_B.py b/Baekjoon Online Judge/A_B.py
new file mode 100644
index 0000000..935466b
--- /dev/null
+++ b/Baekjoon Online Judge/A_B.py	
@@ -0,0 +1,7 @@
+def solution(a: int, b: int) -> int:
+    return a + b
+
+
+a = int(input())
+b = int(input())
+print(solution(a, b))
diff --git a/Baekjoon Online Judge/A_B_C_A_B_C.py b/Baekjoon Online Judge/A_B_C_A_B_C.py
new file mode 100644
index 0000000..abe2875
--- /dev/null
+++ b/Baekjoon Online Judge/A_B_C_A_B_C.py	
@@ -0,0 +1,11 @@
+def main(a, b, c):
+    print(a + b - c    )
+    print(int(str(a) + str(b)) - c)
+
+
+if __name__ == "__main__":
+    a = int(input())
+    b = int(input())
+    c = int(input())
+
+    main(a, b, c)
diff --git a/Baekjoon Online Judge/Adding_Trouble.py b/Baekjoon Online Judge/Adding_Trouble.py
new file mode 100644
index 0000000..c568eca
--- /dev/null
+++ b/Baekjoon Online Judge/Adding_Trouble.py	
@@ -0,0 +1,5 @@
+a, b, c = map(int, input().split())
+if a + b == c:
+    print("correct!")
+else:
+    print("wrong!")
diff --git a/Baekjoon Online Judge/Affischutskicket.py b/Baekjoon Online Judge/Affischutskicket.py
new file mode 100644
index 0000000..62bac67
--- /dev/null
+++ b/Baekjoon Online Judge/Affischutskicket.py	
@@ -0,0 +1,5 @@
+c4_g, a3_g, a4_g = map(int, input().split())
+c4 = c4_g * 0.229 * 0.324
+a3 = a3_g * 0.297 * 0.42
+a4 = a4_g * 0.21 * 0.297
+print(f"{2*c4 + 2*a3 + a4:.6f}")
\ No newline at end of file
diff --git a/Baekjoon Online Judge/An_Easy_Peasy_Problem.py b/Baekjoon Online Judge/An_Easy_Peasy_Problem.py
new file mode 100644
index 0000000..c5678c5
--- /dev/null
+++ b/Baekjoon Online Judge/An_Easy_Peasy_Problem.py	
@@ -0,0 +1,6 @@
+solved_people, total_people = map(int, input().split())
+
+if (solved_people / total_people) >= 0.5:
+    print("E")
+else:
+    print("H")
diff --git a/Baekjoon Online Judge/Andando_no_tempo.py b/Baekjoon Online Judge/Andando_no_tempo.py
new file mode 100644
index 0000000..8cd811e
--- /dev/null
+++ b/Baekjoon Online Judge/Andando_no_tempo.py	
@@ -0,0 +1,12 @@
+from itertools import combinations
+
+
+a, b, c = map(int, input().split())
+
+
+if a == b or a == c or b == c:
+    print("S")
+elif a + b == c or a + c == b or b + c == a:
+    print("S")
+else:
+    print("N")
diff --git a/Baekjoon Online Judge/Another_Eruption.py b/Baekjoon Online Judge/Another_Eruption.py
new file mode 100644
index 0000000..5f42f1a
--- /dev/null
+++ b/Baekjoon Online Judge/Another_Eruption.py	
@@ -0,0 +1,6 @@
+from math import pi
+
+a = int(input())
+r = (a / pi) ** 0.5
+
+print(f"{2 * pi * r:.9f}")
diff --git a/Baekjoon Online Judge/Arno_s_Sleep_Schedule.py b/Baekjoon Online Judge/Arno_s_Sleep_Schedule.py
new file mode 100644
index 0000000..1aa156e
--- /dev/null
+++ b/Baekjoon Online Judge/Arno_s_Sleep_Schedule.py	
@@ -0,0 +1,7 @@
+sleep_time = int(input())
+alarm_time = int(input())
+
+if sleep_time in {0, 1, 2, 3}:
+    sleep_time += 24
+
+print(abs(sleep_time - (alarm_time + 24)))
diff --git a/Baekjoon Online Judge/Bank_Transfer.py b/Baekjoon Online Judge/Bank_Transfer.py
new file mode 100644
index 0000000..1f74ae3
--- /dev/null
+++ b/Baekjoon Online Judge/Bank_Transfer.py	
@@ -0,0 +1,2 @@
+k = int(input())
+print(f"{max(100, min(2000, 25 + 0.01 * k)):.2f}")
diff --git a/Baekjoon Online Judge/Basketball_One_on_One.py b/Baekjoon Online Judge/Basketball_One_on_One.py
new file mode 100644
index 0000000..6c29ca9
--- /dev/null
+++ b/Baekjoon Online Judge/Basketball_One_on_One.py	
@@ -0,0 +1,20 @@
+input_ = input()
+
+result = [''.join(x) for x in zip(input_[::2], input_[1::2])]
+
+a = 0
+b = 0
+
+for ele in result:
+    if ele[0] == "A":
+        a += int(ele[1])
+    else:
+        b += int(ele[1])
+        
+    if a >= 10 and b >= 10 and abs(a-b) >= 2:
+        break
+
+if a > b:
+    print("A")
+else:
+    print("B")
diff --git a/Baekjoon Online Judge/Betting.py b/Baekjoon Online Judge/Betting.py
new file mode 100644
index 0000000..0fce49c
--- /dev/null
+++ b/Baekjoon Online Judge/Betting.py	
@@ -0,0 +1,4 @@
+a = int(input())
+
+print(f"{((100 - a) / a) + 1:.10f}")
+print(f"{((a / (100 - a)) + 1):.10f}")
diff --git "a/Baekjoon Online Judge/Betygs\303\244ttning.py" "b/Baekjoon Online Judge/Betygs\303\244ttning.py"
new file mode 100644
index 0000000..eb7e931
--- /dev/null
+++ "b/Baekjoon Online Judge/Betygs\303\244ttning.py"	
@@ -0,0 +1,16 @@
+a, c, e = map(int, input().split())
+student_a, student_c, student_e = map(int, input().split())
+
+if student_a == a and student_c == c and student_e == e:
+    print("A")
+elif student_a >= a / 2 and student_c == c and student_e == e:
+    print("B")
+elif student_c == c and student_e == e:
+    print("C")
+elif student_c >= c / 2 and student_e == e:
+    print("D")
+elif student_e == e:
+    print("E")
+else:
+    raise ValueError("Invalid input")
+    
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Bicycle.py b/Baekjoon Online Judge/Bicycle.py
new file mode 100644
index 0000000..14363d5
--- /dev/null
+++ b/Baekjoon Online Judge/Bicycle.py	
@@ -0,0 +1,17 @@
+a = int(input())
+x = int(input())
+b = int(input())
+y = int(input())
+t = int(input())
+
+if t > 30:
+    option1 = a + (21 * (t - 30) * x)
+else:
+    option1 = a
+
+if t > 45:
+    option2 = b + (21 * (t - 45) * y)
+else:
+    option2 = b
+
+print(f"{option1} {option2}")
diff --git a/Baekjoon Online Judge/Body_Mass_Index.py b/Baekjoon Online Judge/Body_Mass_Index.py
new file mode 100644
index 0000000..fc5a53c
--- /dev/null
+++ b/Baekjoon Online Judge/Body_Mass_Index.py	
@@ -0,0 +1,11 @@
+weight = float(input())
+height = float(input())
+
+bmi = weight / (height**2)
+
+if bmi < 18.5:
+    print("Underweight")
+elif 18.5 <= bmi <= 25:
+    print("Normal weight")
+else:
+    print("Overweight")
diff --git a/Baekjoon Online Judge/Call_for_Problems.py b/Baekjoon Online Judge/Call_for_Problems.py
new file mode 100644
index 0000000..ce582ba
--- /dev/null
+++ b/Baekjoon Online Judge/Call_for_Problems.py	
@@ -0,0 +1,5 @@
+from collections import Counter
+
+count = int(input())
+counter = Counter(num % 2 == 1 for num in [int(input()) for _ in range(count)])
+print(counter[True])
diff --git a/Baekjoon Online Judge/Checkers.py b/Baekjoon Online Judge/Checkers.py
new file mode 100644
index 0000000..652c662
--- /dev/null
+++ b/Baekjoon Online Judge/Checkers.py	
@@ -0,0 +1,7 @@
+a, b = map(int, input().split())
+
+if a >= b:
+    print(b)
+else:
+    if b != 0:
+        print(a + 1)
diff --git a/Baekjoon Online Judge/Christmas_Tree_Adapter.py b/Baekjoon Online Judge/Christmas_Tree_Adapter.py
new file mode 100644
index 0000000..435b264
--- /dev/null
+++ b/Baekjoon Online Judge/Christmas_Tree_Adapter.py	
@@ -0,0 +1,7 @@
+a = int(input())
+w, v = map(int, input().split())
+
+if w / v >= a:
+    print("1")
+else:
+    print("0")
diff --git a/Baekjoon Online Judge/Communication_Channels.py b/Baekjoon Online Judge/Communication_Channels.py
new file mode 100644
index 0000000..45d59a7
--- /dev/null
+++ b/Baekjoon Online Judge/Communication_Channels.py	
@@ -0,0 +1,8 @@
+t = int(input())
+
+for _ in range(t):
+    n, m = map(str, input().split())
+    if n == m:
+        print("OK")
+    else:
+        print("ERROR")
diff --git a/Baekjoon Online Judge/Congruent_Numbers.py b/Baekjoon Online Judge/Congruent_Numbers.py
new file mode 100644
index 0000000..7497dea
--- /dev/null
+++ b/Baekjoon Online Judge/Congruent_Numbers.py	
@@ -0,0 +1,6 @@
+p_1, q_1, p_2, q_2 = map(int, input().split())
+area = p_1 * p_2 / q_1 / q_2 / 2
+if int(area) == area:
+    print(1)
+else:
+    print(0)
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Conveyor_Belt_Sushi.py b/Baekjoon Online Judge/Conveyor_Belt_Sushi.py
new file mode 100644
index 0000000..1e76402
--- /dev/null
+++ b/Baekjoon Online Judge/Conveyor_Belt_Sushi.py	
@@ -0,0 +1,5 @@
+r = int(input())
+g = int(input())
+b = int(input())
+
+print(r * 3 + g * 4 + b * 5)
diff --git a/Baekjoon Online Judge/Counting_Antibodies.py b/Baekjoon Online Judge/Counting_Antibodies.py
new file mode 100644
index 0000000..f6b8119
--- /dev/null
+++ b/Baekjoon Online Judge/Counting_Antibodies.py	
@@ -0,0 +1,5 @@
+vk, jk = map(int, input().split())
+vl, jl = map(int, input().split())
+vh, dh, jh = map(int, input().split())
+
+print(((vk * jk) + (vl * jl)) * (vh * dh * jh))
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Counting_Clauses.py b/Baekjoon Online Judge/Counting_Clauses.py
new file mode 100644
index 0000000..426cad9
--- /dev/null
+++ b/Baekjoon Online Judge/Counting_Clauses.py	
@@ -0,0 +1,11 @@
+m , n = map(int, input().split())
+
+for _ in range(m):
+    list(map(int, input().split()))
+    
+if m >= 8:
+    print("satisfactory")
+else:
+    print("unsatisfactory")
+    
+    
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Cutting_Corners.py b/Baekjoon Online Judge/Cutting_Corners.py
new file mode 100644
index 0000000..d3e5a89
--- /dev/null
+++ b/Baekjoon Online Judge/Cutting_Corners.py	
@@ -0,0 +1,5 @@
+w, h = map(int, input().split())
+
+diagonal = (w ** 2 + h ** 2) ** (1/2)
+
+print(f"{w + h - diagonal:.9f}")
diff --git "a/Baekjoon Online Judge/DKSH_\354\260\276\352\270\260.py" "b/Baekjoon Online Judge/DKSH_\354\260\276\352\270\260.py"
new file mode 100644
index 0000000..aad4b56
--- /dev/null
+++ "b/Baekjoon Online Judge/DKSH_\354\260\276\352\270\260.py"	
@@ -0,0 +1,2 @@
+target = input()
+print(target.count("DKSH"))
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Divide_the_Cash.py b/Baekjoon Online Judge/Divide_the_Cash.py
new file mode 100644
index 0000000..a8f66ea
--- /dev/null
+++ b/Baekjoon Online Judge/Divide_the_Cash.py	
@@ -0,0 +1,7 @@
+n, d = map(int, input().split())
+result = [int(input()) for _ in range(n)]
+
+total = sum(result)
+
+for ele in result:
+    print(int(ele / total * d))
diff --git a/Baekjoon Online Judge/Easy_to_Solve_Expressions.py b/Baekjoon Online Judge/Easy_to_Solve_Expressions.py
new file mode 100644
index 0000000..68d4c80
--- /dev/null
+++ b/Baekjoon Online Judge/Easy_to_Solve_Expressions.py	
@@ -0,0 +1,20 @@
+from itertools import combinations
+
+inputs = list(map(int, input().split()))
+
+all_case_of_input = list(combinations(inputs, 2))
+
+
+all_case_of_add = list(map(lambda x: x[0] + x[1], all_case_of_input))
+all_case_of_mul = list(map(lambda x: x[0] * x[1], all_case_of_input))
+
+
+for input_ in inputs:
+    if input_ in all_case_of_add:
+        print(1)
+        break
+    if input_ in all_case_of_mul:
+        print(2)
+        break
+else:
+    print(3)
diff --git a/Baekjoon Online Judge/Everyone_is_a_winner.py b/Baekjoon Online Judge/Everyone_is_a_winner.py
new file mode 100644
index 0000000..7c28da8
--- /dev/null
+++ b/Baekjoon Online Judge/Everyone_is_a_winner.py	
@@ -0,0 +1,6 @@
+m, k = map(int, input().split())
+
+if m % k == 0:
+    print("Yes")
+else:
+    print("No")
diff --git a/Baekjoon Online Judge/Final_Price.py b/Baekjoon Online Judge/Final_Price.py
new file mode 100644
index 0000000..16bff48
--- /dev/null
+++ b/Baekjoon Online Judge/Final_Price.py	
@@ -0,0 +1,5 @@
+n = int(input())
+initial_price = int(input())
+price_variations = [int(input()) for _ in range(n - 1)]
+
+print(initial_price + sum(price_variations))
diff --git a/Baekjoon Online Judge/Football_Team.py b/Baekjoon Online Judge/Football_Team.py
new file mode 100644
index 0000000..6bf993e
--- /dev/null
+++ b/Baekjoon Online Judge/Football_Team.py	
@@ -0,0 +1,6 @@
+import sys
+
+translation = str.maketrans({"i": "e", "e": "i", "I": "E", "E": "I"})
+
+for line in sys.stdin:
+    print(line.rstrip("\n").translate(translation))
diff --git a/Baekjoon Online Judge/Goodbye_Code_Jam.py b/Baekjoon Online Judge/Goodbye_Code_Jam.py
new file mode 100644
index 0000000..fc5ad2f
--- /dev/null
+++ b/Baekjoon Online Judge/Goodbye_Code_Jam.py	
@@ -0,0 +1,13 @@
+loop = int(input())
+
+for i in range(1, loop + 1):
+    rank = int(input())
+
+    if rank > 4500:
+        print(f"Case #{i}: Round 1")
+    elif rank > 1000:
+        print(f"Case #{i}: Round 2")
+    elif rank > 25:
+        print(f"Case #{i}: Round 3")
+    else:
+        print(f"Case #{i}: World Finals")
diff --git a/Baekjoon Online Judge/Greetings.py b/Baekjoon Online Judge/Greetings.py
new file mode 100644
index 0000000..16b9aa4
--- /dev/null
+++ b/Baekjoon Online Judge/Greetings.py	
@@ -0,0 +1,5 @@
+n = input()
+
+e_count = n.count("e")
+
+print("h" + "e" * e_count * 2 + "y")
diff --git a/Baekjoon Online Judge/HI_ARC.py b/Baekjoon Online Judge/HI_ARC.py
new file mode 100644
index 0000000..695e224
--- /dev/null
+++ b/Baekjoon Online Judge/HI_ARC.py	
@@ -0,0 +1,6 @@
+def solution(h: int, i: int, a: int, r: int, c: int) -> int:
+    return h * i - a * r * c
+
+
+h, i, a, r, c = list(map(int, input().split()))
+print(solution(h, i, a, r, c))
diff --git a/Baekjoon Online Judge/IT_Passport_Examination.py b/Baekjoon Online Judge/IT_Passport_Examination.py
new file mode 100644
index 0000000..ea2e8cb
--- /dev/null
+++ b/Baekjoon Online Judge/IT_Passport_Examination.py	
@@ -0,0 +1,22 @@
+STRATEGY_PASS_SCORE = 35
+MANAGEMENT_PASS_SCORE = 25
+TECHNOLOGY_PASS_SCORE = 40
+
+
+n = int(input())
+
+for _ in range(n):
+    identity_number, strategy_score, management_score, technology_score = map(
+        int, input().split()
+    )
+    total_score = strategy_score + management_score + technology_score
+
+    pass_condition = (
+        total_score >= 55
+        and strategy_score / STRATEGY_PASS_SCORE >= 0.3
+        and management_score / MANAGEMENT_PASS_SCORE >= 0.3
+        and technology_score / TECHNOLOGY_PASS_SCORE >= 0.3
+    )
+    result = "PASS" if pass_condition else "FAIL"
+
+    print(f"{identity_number} {total_score} {result}")
diff --git a/Baekjoon Online Judge/I_Speak_TXTMSG.py b/Baekjoon Online Judge/I_Speak_TXTMSG.py
new file mode 100644
index 0000000..90101de
--- /dev/null
+++ b/Baekjoon Online Judge/I_Speak_TXTMSG.py	
@@ -0,0 +1,21 @@
+import sys
+
+maps = {
+    "CU": "see you",
+    ":-)": "I’m happy",
+    ":(": "I’m unhappy",
+    ";-)": "wink",
+    ":-P": "stick out my tongue",
+    "(~.~)": "sleepy",
+    "TA": "totally awesome",
+    "CCC": "Canadian Computing Competition",
+    "CUZ": "because",
+    "TY": "thank-you",
+    "YW": "you’re welcome",
+    "TTYL": "talk to you later",
+}
+
+
+for short_form in sys.stdin:
+    result = short_form.strip()
+    print(maps.get(result, result))
diff --git a/Baekjoon Online Judge/Java_Warriors.py b/Baekjoon Online Judge/Java_Warriors.py
new file mode 100644
index 0000000..76593f6
--- /dev/null
+++ b/Baekjoon Online Judge/Java_Warriors.py	
@@ -0,0 +1,5 @@
+REGISTRATION_FEE = 4000
+
+team_count = int(input())
+
+print(team_count * REGISTRATION_FEE)
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Just_Round_Down.py b/Baekjoon Online Judge/Just_Round_Down.py
new file mode 100644
index 0000000..9f7d372
--- /dev/null
+++ b/Baekjoon Online Judge/Just_Round_Down.py	
@@ -0,0 +1,2 @@
+number = float(input())
+print(int(number))
diff --git a/Baekjoon Online Judge/Kuber.py b/Baekjoon Online Judge/Kuber.py
new file mode 100644
index 0000000..5bbe550
--- /dev/null
+++ b/Baekjoon Online Judge/Kuber.py	
@@ -0,0 +1 @@
+print(sum(i ** 3 for i in range(1, int(input()) + 1)))
diff --git a/Baekjoon Online Judge/Loteria_Falha.py b/Baekjoon Online Judge/Loteria_Falha.py
new file mode 100644
index 0000000..cd24a6e
--- /dev/null
+++ b/Baekjoon Online Judge/Loteria_Falha.py	
@@ -0,0 +1,13 @@
+import sys
+
+
+for input_value in sys.stdin:
+    target = int(input_value)
+
+    if target == 0:
+        break
+
+    if target % 42 == 0:
+        print("PREMIADO")
+    else:
+        print("TENTE NOVAMENTE")
diff --git a/Baekjoon Online Judge/Lucky_7.py b/Baekjoon Online Judge/Lucky_7.py
new file mode 100644
index 0000000..04233ee
--- /dev/null
+++ b/Baekjoon Online Judge/Lucky_7.py	
@@ -0,0 +1,12 @@
+def solution(num):
+    if "7" in num and int(num) % 7 == 0:
+        return 3
+    elif "7" in num and int(num) % 7 != 0:
+        return 2
+    elif "7" not in num and int(num) % 7 == 0:
+        return 1
+    else:
+        return 0
+
+
+print(solution(input()))
diff --git a/Baekjoon Online Judge/Metronome.py b/Baekjoon Online Judge/Metronome.py
new file mode 100644
index 0000000..be8a219
--- /dev/null
+++ b/Baekjoon Online Judge/Metronome.py	
@@ -0,0 +1,8 @@
+def solution(n: int) -> int:
+    result = n / 4
+    return f"{result:.2f}"
+
+
+
+n = int(input())
+print(solution(n))
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Micromasters.py b/Baekjoon Online Judge/Micromasters.py
new file mode 100644
index 0000000..77dab6f
--- /dev/null
+++ b/Baekjoon Online Judge/Micromasters.py	
@@ -0,0 +1,2 @@
+n = int(input())
+print(n // 10)
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Population.py b/Baekjoon Online Judge/Population.py
new file mode 100644
index 0000000..79b7786
--- /dev/null
+++ b/Baekjoon Online Judge/Population.py	
@@ -0,0 +1,5 @@
+n = int(input())
+for _ in range(n):
+    p, t = map(int, input().split())
+
+    print(p + (t // 4) - (t // 7))
diff --git a/Baekjoon Online Judge/Previous_Level.py b/Baekjoon Online Judge/Previous_Level.py
new file mode 100644
index 0000000..32d8473
--- /dev/null
+++ b/Baekjoon Online Judge/Previous_Level.py	
@@ -0,0 +1,16 @@
+_ = int(input())
+m = map(int, input().split())
+
+result = []
+
+for ele in m:
+    if ele == 300:
+        result.append(1)
+    elif ele >= 275:
+        result.append(2)
+    elif ele >= 250:
+        result.append(3)
+    else:
+        result.append(4)
+
+print(" ".join(map(str, result)))
diff --git a/Baekjoon Online Judge/Quadrants.py b/Baekjoon Online Judge/Quadrants.py
new file mode 100644
index 0000000..85d111f
--- /dev/null
+++ b/Baekjoon Online Judge/Quadrants.py	
@@ -0,0 +1,14 @@
+import sys
+
+for input_values in sys.stdin:
+    x, y = [float(ele) for ele in input_values.split()]
+    if x > 0 and y > 0:
+        print("Q1")
+    elif x < 0 and y > 0:
+        print("Q2")
+    elif x < 0 and y < 0:
+        print("Q3")
+    elif x > 0 and y < 0:
+        print("Q4")
+    else:
+        print("AXIS")
diff --git a/Baekjoon Online Judge/RICE_SACK.py b/Baekjoon Online Judge/RICE_SACK.py
new file mode 100644
index 0000000..69ee990
--- /dev/null
+++ b/Baekjoon Online Judge/RICE_SACK.py	
@@ -0,0 +1,5 @@
+count = int(input())
+
+for i in range(1, count + 1):
+    input_values = map(int, input().split())
+    print(f"Case #{i}: {max(input_values)}")
diff --git a/Baekjoon Online Judge/Reverse.c b/Baekjoon Online Judge/Reverse.c
new file mode 100644
index 0000000..e69de29
diff --git a/Baekjoon Online Judge/Reverse.py b/Baekjoon Online Judge/Reverse.py
new file mode 100644
index 0000000..75c4f3e
--- /dev/null
+++ b/Baekjoon Online Judge/Reverse.py	
@@ -0,0 +1,9 @@
+loop = int(input())
+
+for i in range(loop):
+    s, i, j = input().split()    
+    i = int(i)
+    j = int(j)
+
+    print(s.replace(s[i:j], ""))
+
diff --git a/Baekjoon Online Judge/Rust_Study.py b/Baekjoon Online Judge/Rust_Study.py
new file mode 100644
index 0000000..38ada3b
--- /dev/null
+++ b/Baekjoon Online Judge/Rust_Study.py	
@@ -0,0 +1,6 @@
+_ = input()
+
+plans = list(map(int, input().split()))
+executions = list(map(int, input().split()))
+
+print(sum(plan <= execution for plan, execution in zip(plans, executions)))
diff --git a/Baekjoon Online Judge/SMS_from_MCHS.py b/Baekjoon Online Judge/SMS_from_MCHS.py
new file mode 100644
index 0000000..a157d9a
--- /dev/null
+++ b/Baekjoon Online Judge/SMS_from_MCHS.py	
@@ -0,0 +1,13 @@
+
+today_temperature, today_wind_speed = map(int, input().split())
+tomorrow_temperature, tomorrow_wind_speed = map(int, input().split())
+
+
+if tomorrow_temperature < 0 and tomorrow_wind_speed >= 10:
+    print("A storm warning for tomorrow! Be careful and stay home if possible!")
+elif tomorrow_temperature < today_temperature:
+    print("MCHS warns! Low temperature is expected tomorrow.")
+elif tomorrow_wind_speed > today_wind_speed:
+    print("MCHS warns! Strong wind is expected tomorrow.")
+else:
+    print("No message")
diff --git a/Baekjoon Online Judge/SUAPC_2023_Summer.py b/Baekjoon Online Judge/SUAPC_2023_Summer.py
new file mode 100644
index 0000000..add700d
--- /dev/null
+++ b/Baekjoon Online Judge/SUAPC_2023_Summer.py	
@@ -0,0 +1,15 @@
+SCORE_BOARD = {
+    1: [12, 1600],
+    2: [11, 894],
+    3: [11, 1327],
+    4: [10, 1311],
+    5: [9, 1004],
+    6: [9, 1178],
+    7: [9, 1357],
+    8: [8, 837],
+    9: [7, 1055],
+    10: [6, 556],
+    11: [6, 773],
+}
+
+print(" ".join(map(str, SCORE_BOARD[int(input())])))
diff --git a/Baekjoon Online Judge/SUAPC_2024_Winter.py b/Baekjoon Online Judge/SUAPC_2024_Winter.py
new file mode 100644
index 0000000..7f0d893
--- /dev/null
+++ b/Baekjoon Online Judge/SUAPC_2024_Winter.py	
@@ -0,0 +1,17 @@
+grade = int(input())
+
+SUAPC_2024_WINTER_INFO = {
+    1: (11, "A B C D E F G H J L M"),
+    2: (9, "A C E F G H I L M"),
+    3: (9, "A C E F G H I L M"),
+    4: (9, "A B C E F G H L M"),
+    5: (8, "A C E F G H L M"),
+    6: (8, "A C E F G H L M"),
+    7: (8, "A C E F G H L M"),
+    8: (8, "A C E F G H L M"),
+    9: (8, "A C E F G H L M"),
+    10: (8, "A B C F G H L M"),
+}
+
+print(SUAPC_2024_WINTER_INFO[grade][0])
+print(SUAPC_2024_WINTER_INFO[grade][1])
diff --git a/Baekjoon Online Judge/Schronisko.py b/Baekjoon Online Judge/Schronisko.py
new file mode 100644
index 0000000..4538bb3
--- /dev/null
+++ b/Baekjoon Online Judge/Schronisko.py	
@@ -0,0 +1,5 @@
+z = int(input())
+
+for _ in range(z):
+    n, m = map(int, input().split())
+    print(n * m // 2)
diff --git a/Baekjoon Online Judge/Serca.py b/Baekjoon Online Judge/Serca.py
new file mode 100644
index 0000000..7e8f5c5
--- /dev/null
+++ b/Baekjoon Online Judge/Serca.py	
@@ -0,0 +1,31 @@
+"""
+Informatycy to też ludzie, więc jak wszyscy potrzebują trochę miłości. Bajtek właśnie postanowił wyznać miłość pięknej Bajtolinie i w tym celu zamierza narysować jej N serduszek w ASCII art złożonych ze znaków małpy (@).
+
+Jedno serduszko wygląda następująco:
+
+ @@@   @@@ 
+@   @ @   @
+@    @    @
+@         @
+ @       @ 
+  @     @  
+   @   @   
+    @ @    
+     @     
+Bajtek chciałby, żeby serduszka były wypisane jedno pod drugim. Pomóż mu!
+
+Napisz program, który: wczyta liczbę N – liczbę serduszek, które Bajtek chce narysować Bajtolinie i wypisze na standardowe wyjście N serduszek w formacie opisanym powyżej.
+"""
+
+N = int(input())
+
+for _ in range(N):
+    print(" @@@   @@@ ")
+    print("@   @ @   @")
+    print("@    @    @")
+    print("@         @")
+    print(" @       @ ")
+    print("  @     @  ")
+    print("   @   @   ")
+    print("    @ @    ")
+    print("     @     ")
diff --git a/Baekjoon Online Judge/Squares.py b/Baekjoon Online Judge/Squares.py
new file mode 100644
index 0000000..2b190df
--- /dev/null
+++ b/Baekjoon Online Judge/Squares.py	
@@ -0,0 +1 @@
+print(f"The largest square has side length {int(int(input()) ** (1/2))}.")
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Terms_of_Office.py b/Baekjoon Online Judge/Terms_of_Office.py
new file mode 100644
index 0000000..0a85861
--- /dev/null
+++ b/Baekjoon Online Judge/Terms_of_Office.py	
@@ -0,0 +1,16 @@
+def lcm(a, b, c, d):
+    return a * b * c * d // gcd(a, b, c, d)
+
+
+def gcd(a, b, c, d):
+    return gcd(b, a % b, c, d) if b else a
+
+
+x = int(input())
+y = int(input())
+
+count = 0
+for _ in range(x, y + 1):
+    if count % 60 == 0:
+        print(f"All positions change in year {x + count}")
+    count += 1
diff --git a/Baekjoon Online Judge/The_Merchant_of_Venice.py b/Baekjoon Online Judge/The_Merchant_of_Venice.py
new file mode 100644
index 0000000..4b401a6
--- /dev/null
+++ b/Baekjoon Online Judge/The_Merchant_of_Venice.py	
@@ -0,0 +1,11 @@
+k = int(input())
+
+
+for i in range(1, k + 1):
+    result = 0
+    n, s, d = map(int, input().split())
+    for _ in range(n):
+        di, vi = map(int, input().split())
+        if di <= s * d:
+            result += vi
+    print(f"Data Set {i}:\n{result}\n")
diff --git a/Baekjoon Online Judge/The_Walking_Adam.py b/Baekjoon Online Judge/The_Walking_Adam.py
new file mode 100644
index 0000000..24c1c9a
--- /dev/null
+++ b/Baekjoon Online Judge/The_Walking_Adam.py	
@@ -0,0 +1,12 @@
+case = int(input())
+
+for _ in range(case):
+    trials = input()
+    
+    count = 0
+    for trial in trials:
+        if trial == "D":
+            break
+        count += 1
+        
+    print(count)
\ No newline at end of file
diff --git a/Baekjoon Online Judge/Triathlon.py b/Baekjoon Online Judge/Triathlon.py
new file mode 100644
index 0000000..bc08616
--- /dev/null
+++ b/Baekjoon Online Judge/Triathlon.py	
@@ -0,0 +1,15 @@
+n = int(input())
+
+max_value = 0
+
+for _ in range(n):
+    scores = list(map(int, input().split()))
+    a, d, g = scores
+
+    target_value = a * (d + g)
+    if a == (d + g):
+        target_value *= 2
+
+    max_value = max(max_value, target_value)
+
+print(max_value)
diff --git "a/Baekjoon Online Judge/UOS_\353\254\270\354\236\220\354\227\264.py" "b/Baekjoon Online Judge/UOS_\353\254\270\354\236\220\354\227\264.py"
new file mode 100644
index 0000000..c0d8594
--- /dev/null
+++ "b/Baekjoon Online Judge/UOS_\353\254\270\354\236\220\354\227\264.py"	
@@ -0,0 +1,10 @@
+TARGET_STRING = "UOS"
+
+x = int(input())
+
+if x % 3 == 1:
+    print(TARGET_STRING[0])
+elif x % 3 == 2:
+    print(TARGET_STRING[1])
+else:
+    print(TARGET_STRING[2])
diff --git a/Baekjoon Online Judge/Welcome_to_SMUPC.py b/Baekjoon Online Judge/Welcome_to_SMUPC.py
new file mode 100644
index 0000000..20a787b
--- /dev/null
+++ b/Baekjoon Online Judge/Welcome_to_SMUPC.py	
@@ -0,0 +1,8 @@
+MESSAGE = "WelcomeToSMUPC"
+
+
+def solution(n: int) -> str:
+    return MESSAGE[n % len(MESSAGE) - 1]
+
+
+print(solution(int(input())))
diff --git a/Baekjoon Online Judge/ZOAC_6.py b/Baekjoon Online Judge/ZOAC_6.py
new file mode 100644
index 0000000..8340b6c
--- /dev/null
+++ b/Baekjoon Online Judge/ZOAC_6.py	
@@ -0,0 +1,8 @@
+loop = int(input())
+count = 0
+for _ in range(loop):
+    s = input()
+    if "01" in s or "OI" in s:
+        count += 1
+
+print(count)
\ No newline at end of file
diff --git a/content.md b/Baekjoon Online Judge/content.md
similarity index 100%
rename from content.md
rename to Baekjoon Online Judge/content.md
diff --git "a/Baekjoon Online Judge/\303\204pplen_och_p\303\244ron.py" "b/Baekjoon Online Judge/\303\204pplen_och_p\303\244ron.py"
new file mode 100644
index 0000000..427ee94
--- /dev/null
+++ "b/Baekjoon Online Judge/\303\204pplen_och_p\303\244ron.py"	
@@ -0,0 +1,8 @@
+a, p = map(int, input().split())
+
+if a * 7 > p * 13:
+    print("Axel")
+elif a * 7 < p * 13:
+    print("Petra")
+else:
+    print("lika")
diff --git "a/Baekjoon Online Judge/\320\232\320\270\320\275\320\276\320\274\320\260\320\275\321\213.py" "b/Baekjoon Online Judge/\320\232\320\270\320\275\320\276\320\274\320\260\320\275\321\213.py"
new file mode 100644
index 0000000..9b971e5
--- /dev/null
+++ "b/Baekjoon Online Judge/\320\232\320\270\320\275\320\276\320\274\320\260\320\275\321\213.py"	
@@ -0,0 +1,16 @@
+max_viewing_time = list(map(int, input().split()))
+mel_time = list(map(int, input().split()))
+
+def calculate_viewing_time(viewing_time):
+    trailer_time, series_time, film_time = viewing_time[0], viewing_time[1], viewing_time[2]
+    return trailer_time * 3 + series_time * 20 + film_time * 120
+
+
+if calculate_viewing_time(max_viewing_time) == calculate_viewing_time(mel_time):
+    print("Draw")
+    exit()
+
+if calculate_viewing_time(max_viewing_time) > calculate_viewing_time(mel_time):
+    print("Max")
+else:
+    print("Mel")
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\320\232\320\276\320\275\320\262\320\265\320\271\320\265\321\200.py" "b/Baekjoon Online Judge/\320\232\320\276\320\275\320\262\320\265\320\271\320\265\321\200.py"
new file mode 100644
index 0000000..dedab9c
--- /dev/null
+++ "b/Baekjoon Online Judge/\320\232\320\276\320\275\320\262\320\265\320\271\320\265\321\200.py"	
@@ -0,0 +1,13 @@
+_ = int(input())
+moving_histories = map(int, input().split())
+
+total = sum(moving_histories)
+
+if total == 0:
+    print("Stay")
+    exit()
+
+if total > 0:
+    print("Right")
+else:
+    print("Left")
diff --git "a/Baekjoon Online Judge/\320\237\320\247\320\225\320\233\320\230\320\247\320\232\320\220\320\242\320\220_\320\234\320\220\320\257.py" "b/Baekjoon Online Judge/\320\237\320\247\320\225\320\233\320\230\320\247\320\232\320\220\320\242\320\220_\320\234\320\220\320\257.py"
new file mode 100644
index 0000000..f5ab08b
--- /dev/null
+++ "b/Baekjoon Online Judge/\320\237\320\247\320\225\320\233\320\230\320\247\320\232\320\220\320\242\320\220_\320\234\320\220\320\257.py"	
@@ -0,0 +1,11 @@
+a, b, c = map(int, input().split())
+
+avg = (a + b + c) // 3
+res = 0
+
+res += c - avg
+b += c - avg
+
+res += b - avg
+
+print(res)
diff --git "a/Baekjoon Online Judge/\320\240\320\276\320\261\320\270\320\275\320\267\320\276\320\275_\320\232\321\200\321\203\320\267\320\276.py" "b/Baekjoon Online Judge/\320\240\320\276\320\261\320\270\320\275\320\267\320\276\320\275_\320\232\321\200\321\203\320\267\320\276.py"
new file mode 100644
index 0000000..3a71fb1
--- /dev/null
+++ "b/Baekjoon Online Judge/\320\240\320\276\320\261\320\270\320\275\320\267\320\276\320\275_\320\232\321\200\321\203\320\267\320\276.py"	
@@ -0,0 +1,6 @@
+def solution(num):
+    return "V" * (num // 5) + "I" * (num % 5)
+
+
+num = int(input())
+print(solution(num))
diff --git "a/Baekjoon Online Judge/\320\241\321\207\320\260\321\201\321\202\321\214\320\265_\320\234\320\270\321\201\321\202\320\265\321\200\320\260_\320\221\320\270\320\275\320\260.py" "b/Baekjoon Online Judge/\320\241\321\207\320\260\321\201\321\202\321\214\320\265_\320\234\320\270\321\201\321\202\320\265\321\200\320\260_\320\221\320\270\320\275\320\260.py"
new file mode 100644
index 0000000..4d7da94
--- /dev/null
+++ "b/Baekjoon Online Judge/\320\241\321\207\320\260\321\201\321\202\321\214\320\265_\320\234\320\270\321\201\321\202\320\265\321\200\320\260_\320\221\320\270\320\275\320\260.py"	
@@ -0,0 +1,8 @@
+count = int(input())
+numbers = list(map(int, input().split()))
+
+is_happiness_score = sum(1 if number % 2 == 0 else -1 for number in numbers) > 0
+if is_happiness_score:
+    print("Happy")
+else:
+    print("Sad")
diff --git "a/Baekjoon Online Judge/\343\202\242\343\202\244\343\202\271\343\202\257\343\203\252\343\203\274\343\203\240_Ice_Cream.py" "b/Baekjoon Online Judge/\343\202\242\343\202\244\343\202\271\343\202\257\343\203\252\343\203\274\343\203\240_Ice_Cream.py"
new file mode 100644
index 0000000..0de362d
--- /dev/null
+++ "b/Baekjoon Online Judge/\343\202\242\343\202\244\343\202\271\343\202\257\343\203\252\343\203\274\343\203\240_Ice_Cream.py"	
@@ -0,0 +1,11 @@
+from math import ceil
+
+
+s = int(input())
+a = int(input())
+b = int(input())
+
+if a >= s:
+    print(250)
+else:
+    print(int(250 + (ceil((s - a) / b) * 100)))
diff --git "a/Baekjoon Online Judge/\343\202\276\343\203\255\347\233\256_Same_Numbers.py" "b/Baekjoon Online Judge/\343\202\276\343\203\255\347\233\256_Same_Numbers.py"
new file mode 100644
index 0000000..12cf48d
--- /dev/null
+++ "b/Baekjoon Online Judge/\343\202\276\343\203\255\347\233\256_Same_Numbers.py"	
@@ -0,0 +1,2 @@
+number: str = input()
+print(1) if number[0] == number[1] else print(0)
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\343\203\226\343\203\251\343\203\203\343\202\257\343\202\270\343\203\243\343\203\203\343\202\257_Blackjack.py" "b/Baekjoon Online Judge/\343\203\226\343\203\251\343\203\203\343\202\257\343\202\270\343\203\243\343\203\203\343\202\257_Blackjack.py"
new file mode 100644
index 0000000..46861da
--- /dev/null
+++ "b/Baekjoon Online Judge/\343\203\226\343\203\251\343\203\203\343\202\257\343\202\270\343\203\243\343\203\203\343\202\257_Blackjack.py"	
@@ -0,0 +1,8 @@
+a = int(input())
+b = int(input())
+c = int(input())
+
+if a + b + c <= 21:
+    print(1)
+else:
+    print(0)
diff --git "a/Baekjoon Online Judge/\344\270\211\346\226\271\346\257\224\350\274\203_Three_Way_Comparison.py" "b/Baekjoon Online Judge/\344\270\211\346\226\271\346\257\224\350\274\203_Three_Way_Comparison.py"
new file mode 100644
index 0000000..cd6233c
--- /dev/null
+++ "b/Baekjoon Online Judge/\344\270\211\346\226\271\346\257\224\350\274\203_Three_Way_Comparison.py"	
@@ -0,0 +1,9 @@
+a = int(input())
+b = int(input())
+
+if a < b:
+    print(-1)
+elif a == b:
+    print(0)
+else:
+    print(1)
diff --git "a/Baekjoon Online Judge/\345\210\206_Minutes.py" "b/Baekjoon Online Judge/\345\210\206_Minutes.py"
new file mode 100644
index 0000000..ba145a6
--- /dev/null
+++ "b/Baekjoon Online Judge/\345\210\206_Minutes.py"	
@@ -0,0 +1,4 @@
+hour = int(input())
+minute = int(input())
+
+print(hour * 60 + minute)
diff --git "a/Baekjoon Online Judge/\345\270\260\347\234\201_Homecoming.py" "b/Baekjoon Online Judge/\345\270\260\347\234\201_Homecoming.py"
new file mode 100644
index 0000000..5762ac9
--- /dev/null
+++ "b/Baekjoon Online Judge/\345\270\260\347\234\201_Homecoming.py"	
@@ -0,0 +1,6 @@
+a, b, c = map(int, input().split())
+
+if a <= c < b:
+    print(1)
+else:
+    print(0)
diff --git "a/Baekjoon Online Judge/\345\276\222\347\253\266\350\265\260_Footrace.py" "b/Baekjoon Online Judge/\345\276\222\347\253\266\350\265\260_Footrace.py"
new file mode 100644
index 0000000..a89b574
--- /dev/null
+++ "b/Baekjoon Online Judge/\345\276\222\347\253\266\350\265\260_Footrace.py"	
@@ -0,0 +1,4 @@
+t = int(input())
+v = int(input())
+
+print(t * v)
diff --git "a/Baekjoon Online Judge/\346\211\200\346\214\201\351\207\221_Money_On_Me.py" "b/Baekjoon Online Judge/\346\211\200\346\214\201\351\207\221_Money_On_Me.py"
new file mode 100644
index 0000000..e672ed9
--- /dev/null
+++ "b/Baekjoon Online Judge/\346\211\200\346\214\201\351\207\221_Money_On_Me.py"	
@@ -0,0 +1,4 @@
+a = int(input())
+b = int(input())
+
+print(a * 1000 + b * 10000)
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\346\231\202\351\226\223_Hour.py" "b/Baekjoon Online Judge/\346\231\202\351\226\223_Hour.py"
new file mode 100644
index 0000000..d9b4618
--- /dev/null
+++ "b/Baekjoon Online Judge/\346\231\202\351\226\223_Hour.py"	
@@ -0,0 +1,2 @@
+day = int(input())
+print(day * 24)
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\346\234\253\345\260\276\343\201\256\346\226\207\345\255\227_Last_Letter.py" "b/Baekjoon Online Judge/\346\234\253\345\260\276\343\201\256\346\226\207\345\255\227_Last_Letter.py"
new file mode 100644
index 0000000..bd1064c
--- /dev/null
+++ "b/Baekjoon Online Judge/\346\234\253\345\260\276\343\201\256\346\226\207\345\255\227_Last_Letter.py"	
@@ -0,0 +1,7 @@
+n = int(input())
+s = input()
+
+if s[-1] == "G":
+    print(s[:-1])
+else:
+    print(s + "G")
diff --git "a/Baekjoon Online Judge/\346\236\234\347\211\251_Fruit.py" "b/Baekjoon Online Judge/\346\236\234\347\211\251_Fruit.py"
new file mode 100644
index 0000000..518b06b
--- /dev/null
+++ "b/Baekjoon Online Judge/\346\236\234\347\211\251_Fruit.py"	
@@ -0,0 +1,4 @@
+x = int(input())
+y = int(input())
+
+print(x + y + 3)
diff --git "a/Baekjoon Online Judge/\346\257\215\351\237\263\343\202\222\346\225\260\343\201\210\343\202\213_Counting_Vowels.py" "b/Baekjoon Online Judge/\346\257\215\351\237\263\343\202\222\346\225\260\343\201\210\343\202\213_Counting_Vowels.py"
new file mode 100644
index 0000000..03a4f55
--- /dev/null
+++ "b/Baekjoon Online Judge/\346\257\215\351\237\263\343\202\222\346\225\260\343\201\210\343\202\213_Counting_Vowels.py"	
@@ -0,0 +1,10 @@
+VOWELS = "aeiou"
+
+
+def solution(input_word: str) -> int:
+    return sum(character in VOWELS for character in input_word)
+
+
+if __name__ == "__main__":
+    _ = int(input())
+    print(solution(input()))
diff --git "a/Baekjoon Online Judge/\347\201\253\346\233\234\346\227\245_Tuesday.py" "b/Baekjoon Online Judge/\347\201\253\346\233\234\346\227\245_Tuesday.py"
new file mode 100644
index 0000000..9c2cb42
--- /dev/null
+++ "b/Baekjoon Online Judge/\347\201\253\346\233\234\346\227\245_Tuesday.py"	
@@ -0,0 +1,6 @@
+after_day = int(input())
+
+if after_day % 7 == 2:
+    print("1")
+else:
+    print("0")
diff --git "a/Baekjoon Online Judge/\347\237\255\351\207\235_Hour_Hand.py" "b/Baekjoon Online Judge/\347\237\255\351\207\235_Hour_Hand.py"
new file mode 100644
index 0000000..ab03ed2
--- /dev/null
+++ "b/Baekjoon Online Judge/\347\237\255\351\207\235_Hour_Hand.py"	
@@ -0,0 +1,9 @@
+a = int(input())
+b = int(input())
+
+result = (a + b) % 12
+
+if result == 0:
+    print(12)
+else:
+    print(result)
diff --git "a/Baekjoon Online Judge/\347\247\273\345\213\225_Moving.py" "b/Baekjoon Online Judge/\347\247\273\345\213\225_Moving.py"
new file mode 100644
index 0000000..de40cbe
--- /dev/null
+++ "b/Baekjoon Online Judge/\347\247\273\345\213\225_Moving.py"	
@@ -0,0 +1,8 @@
+x = int(input())
+y = int(input())
+z = int(input())
+
+if (x + y) <= (z * 60 + 30) / 60:
+    print("1")
+else:
+    print("0")
diff --git "a/Baekjoon Online Judge/\350\250\210\347\256\227_Calculation.py" "b/Baekjoon Online Judge/\350\250\210\347\256\227_Calculation.py"
new file mode 100644
index 0000000..5df50fb
--- /dev/null
+++ "b/Baekjoon Online Judge/\350\250\210\347\256\227_Calculation.py"	
@@ -0,0 +1,4 @@
+a, b = map(int, input().split())
+
+print(max(a + b, a - b))
+print(min(a + b, a - b))
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\351\211\233\347\255\206_2_Pencils_2.py" "b/Baekjoon Online Judge/\351\211\233\347\255\206_2_Pencils_2.py"
new file mode 100644
index 0000000..4b7a764
--- /dev/null
+++ "b/Baekjoon Online Judge/\351\211\233\347\255\206_2_Pencils_2.py"	
@@ -0,0 +1,2 @@
+a = int(input())
+print(a // 5)
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\351\243\264\343\201\256\350\242\213\350\251\260\343\202\201_Drops_Packing.py" "b/Baekjoon Online Judge/\351\243\264\343\201\256\350\242\213\350\251\260\343\202\201_Drops_Packing.py"
new file mode 100644
index 0000000..25759c8
--- /dev/null
+++ "b/Baekjoon Online Judge/\351\243\264\343\201\256\350\242\213\350\251\260\343\202\201_Drops_Packing.py"	
@@ -0,0 +1,5 @@
+a = int(input())
+b = int(input())
+c = int(input())
+
+print(a * b + c)
diff --git "a/Baekjoon Online Judge/\352\260\200\355\235\254\354\231\200_4_\354\213\234\352\260\204\354\235\230_\353\262\275_1.py" "b/Baekjoon Online Judge/\352\260\200\355\235\254\354\231\200_4_\354\213\234\352\260\204\354\235\230_\353\262\275_1.py"
new file mode 100644
index 0000000..b28aae9
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\260\200\355\235\254\354\231\200_4_\354\213\234\352\260\204\354\235\230_\353\262\275_1.py"	
@@ -0,0 +1,7 @@
+s_ab = int(input())
+f_ab = int(input())
+
+if s_ab <= f_ab:
+    print("high speed rail")
+else:
+    print("flight")
diff --git "a/Baekjoon Online Judge/\352\260\200\355\235\254\354\231\200_\355\201\264\353\237\275_\354\230\244\353\224\224\354\205\230_1.py" "b/Baekjoon Online Judge/\352\260\200\355\235\254\354\231\200_\355\201\264\353\237\275_\354\230\244\353\224\224\354\205\230_1.py"
new file mode 100644
index 0000000..0922434
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\260\200\355\235\254\354\231\200_\355\201\264\353\237\275_\354\230\244\353\224\224\354\205\230_1.py"	
@@ -0,0 +1,14 @@
+input_value = input().split()
+lv, panjung = int(input_value[0]), input_value[1]
+
+if panjung == "miss":
+    print(0)
+elif panjung == "bad":
+    print(lv * 200)
+elif panjung == "cool":
+    print(lv * 400)
+elif panjung == "great":
+    print(lv * 600)
+else:
+    print(1000 * int(lv))
+    
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\352\260\220\353\247\210\354\204\240\354\235\204_\353\247\236\354\235\200_\354\273\264\355\223\250\355\204\260.py" "b/Baekjoon Online Judge/\352\260\220\353\247\210\354\204\240\354\235\204_\353\247\236\354\235\200_\354\273\264\355\223\250\355\204\260.py"
new file mode 100644
index 0000000..54e89ec
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\260\220\353\247\210\354\204\240\354\235\204_\353\247\236\354\235\200_\354\273\264\355\223\250\355\204\260.py"	
@@ -0,0 +1,12 @@
+cat_picture = [input().split() for _ in range(15)]
+
+for row in cat_picture:
+    if "w" in row:
+        print("chunbae")
+        break
+    elif "b" in row:
+        print("nabi")
+        break
+    elif "g" in row:
+        print("yeongcheol")
+        break
diff --git "a/Baekjoon Online Judge/\352\260\225\353\213\271_\353\214\200\352\264\200.py" "b/Baekjoon Online Judge/\352\260\225\353\213\271_\353\214\200\352\264\200.py"
new file mode 100644
index 0000000..273247d
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\260\225\353\213\271_\353\214\200\352\264\200.py"	
@@ -0,0 +1,10 @@
+max_value = 0
+max_seminar = ""
+for _ in range(7):
+    input_value = input().split()
+    seminar, count = input_value[0], int(input_value[1])
+    if count > max_value:
+        max_value = count
+        max_seminar = seminar
+
+print(max_seminar)
diff --git "a/Baekjoon Online Judge/\352\260\234\355\221\234.py" "b/Baekjoon Online Judge/\352\260\234\355\221\234.py"
new file mode 100644
index 0000000..3831b0f
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\260\234\355\221\234.py"	
@@ -0,0 +1,13 @@
+t = int(input())
+
+for _ in range(t):
+    result = []
+
+    vote = int(input())
+    five_votes, one_vote = divmod(vote, 5)
+
+    for _ in range(five_votes):
+        result.append("++++")
+    result.append("|" * one_vote)
+
+    print(" ".join(result))
diff --git "a/Baekjoon Online Judge/\352\264\200\352\263\265_\354\226\264\354\260\214\355\225\230\354\227\254_\353\252\251\353\247\214_\354\230\244\354\205\250\354\206\214.py" "b/Baekjoon Online Judge/\352\264\200\352\263\265_\354\226\264\354\260\214\355\225\230\354\227\254_\353\252\251\353\247\214_\354\230\244\354\205\250\354\206\214.py"
new file mode 100644
index 0000000..3013763
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\264\200\352\263\265_\354\226\264\354\260\214\355\225\230\354\227\254_\353\252\251\353\247\214_\354\230\244\354\205\250\354\206\214.py"	
@@ -0,0 +1,3 @@
+loop = int(input())
+targets = [input() for _ in range(loop)]
+print(next(target for target in targets if "S" in target))
diff --git "a/Baekjoon Online Judge/\352\267\270\352\262\214_\353\254\264\354\212\250_\354\275\224\353\223\234\353\213\210.py" "b/Baekjoon Online Judge/\352\267\270\352\262\214_\353\254\264\354\212\250_\354\275\224\353\223\234\353\213\210.py"
new file mode 100644
index 0000000..27166a3
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\267\270\352\262\214_\353\254\264\354\212\250_\354\275\224\353\223\234\353\213\210.py"	
@@ -0,0 +1,6 @@
+code = input()
+
+if code[0] == code[-1] == '"' and len(code[1:-1]) > 0:
+    print(code[1:-1])
+else:
+    print("CE")
diff --git "a/Baekjoon Online Judge/\352\270\200\353\241\234\353\262\214_\355\217\254\353\213\211\354\212\244.py" "b/Baekjoon Online Judge/\352\270\200\353\241\234\353\262\214_\355\217\254\353\213\211\354\212\244.py"
new file mode 100644
index 0000000..cd07a8b
--- /dev/null
+++ "b/Baekjoon Online Judge/\352\270\200\353\241\234\353\262\214_\355\217\254\353\213\211\354\212\244.py"	
@@ -0,0 +1,13 @@
+s1 = input()
+s2 = input()
+s3 = input()
+
+FOR_GLOBAL = {"l", "k", "p"}
+
+condition_1 = s1[0] in FOR_GLOBAL and s2[0] in FOR_GLOBAL and s3[0] in FOR_GLOBAL
+condition_2 = set(f"{s1[0]}{s2[0]}{s3[0]}") == set(FOR_GLOBAL)
+
+if condition_1 and condition_2:
+    print("GLOBAL")
+else:
+    print("PONIX")
diff --git "a/Baekjoon Online Judge/\353\205\270\355\212\270\353\266\201_\354\204\270_\353\214\200\353\245\274_\352\260\200\354\247\200\352\263\240_\354\231\224\353\213\244.py" "b/Baekjoon Online Judge/\353\205\270\355\212\270\353\266\201_\354\204\270_\353\214\200\353\245\274_\352\260\200\354\247\200\352\263\240_\354\231\224\353\213\244.py"
new file mode 100644
index 0000000..b83c84c
--- /dev/null
+++ "b/Baekjoon Online Judge/\353\205\270\355\212\270\353\266\201_\354\204\270_\353\214\200\353\245\274_\352\260\200\354\247\200\352\263\240_\354\231\224\353\213\244.py"	
@@ -0,0 +1,2 @@
+t1, t2 = map(int, input().split())
+print(min(t1, t2))
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\353\223\261\352\265\220.py" "b/Baekjoon Online Judge/\353\223\261\352\265\220.py"
new file mode 100644
index 0000000..899ce4c
--- /dev/null
+++ "b/Baekjoon Online Judge/\353\223\261\352\265\220.py"	
@@ -0,0 +1,12 @@
+n, x = map(int, input().split())
+
+result = []
+
+for _ in range(n):
+    s, t = map(int, input().split())
+    if s + t <= x:
+        result.append(s)
+try:
+    print(max(result))
+except ValueError:
+    print(-1)
diff --git "a/Baekjoon Online Judge/\353\235\274\353\251\264_\352\263\265\354\213\235.py" "b/Baekjoon Online Judge/\353\235\274\353\251\264_\352\263\265\354\213\235.py"
new file mode 100644
index 0000000..d0d4ea0
--- /dev/null
+++ "b/Baekjoon Online Judge/\353\235\274\353\251\264_\352\263\265\354\213\235.py"	
@@ -0,0 +1,8 @@
+def solution(a: int, b: int, x: int) -> int:
+    return a * (x - 1) + b
+
+
+loop = int(input())
+for _ in range(loop):
+    a, b, x = list(map(int, input().split()))
+    print(solution(a, b, x))
diff --git "a/Baekjoon Online Judge/\353\241\234\353\230\220.py" "b/Baekjoon Online Judge/\353\241\234\353\230\220.py"
new file mode 100644
index 0000000..24a8726
--- /dev/null
+++ "b/Baekjoon Online Judge/\353\241\234\353\230\220.py"	
@@ -0,0 +1,25 @@
+import sys
+
+from itertools import combinations
+
+LOTTO_COUNT = 6
+
+
+def solution(s: list[int]):
+    result = []
+
+    for combination in combinations(s, LOTTO_COUNT):
+        result.append(" ".join(map(str, combination)))
+
+    return "\n".join(result)
+
+
+if __name__ == "__main__":
+    for line in sys.stdin:
+        if not line.strip():
+            continue
+        input_values = list(map(int, line.split()))
+        k, *s = input_values
+        if k == 0:
+            break
+        print(solution(s), end="\n\n")
diff --git "a/Baekjoon Online Judge/\353\257\274\354\243\274\354\243\274\354\235\230.py" "b/Baekjoon Online Judge/\353\257\274\354\243\274\354\243\274\354\235\230.py"
new file mode 100644
index 0000000..617761f
--- /dev/null
+++ "b/Baekjoon Online Judge/\353\257\274\354\243\274\354\243\274\354\235\230.py"	
@@ -0,0 +1,2 @@
+n, _ = map(int, input().split())
+print(sum(1 for problem in [input() for _ in range(n)] if problem.count("O") > problem.count("X")))
diff --git "a/Baekjoon Online Judge/\353\270\214\354\213\244\354\235\264\354\231\200_\354\271\234\352\265\254\352\260\200_\353\220\230\352\263\240_\354\213\266\354\226\264.py" "b/Baekjoon Online Judge/\353\270\214\354\213\244\354\235\264\354\231\200_\354\271\234\352\265\254\352\260\200_\353\220\230\352\263\240_\354\213\266\354\226\264.py"
new file mode 100644
index 0000000..58fc4ba
--- /dev/null
+++ "b/Baekjoon Online Judge/\353\270\214\354\213\244\354\235\264\354\231\200_\354\271\234\352\265\254\352\260\200_\353\220\230\352\263\240_\354\213\266\354\226\264.py"	
@@ -0,0 +1,12 @@
+a, b = map(int, input().split())
+k, x = map(int, input().split())
+
+friend_range = {i for i in range(a, b + 1)}
+bsil_enable_friend_range = {i for i in range(k - x, k + x + 1)}
+
+intersection = friend_range & bsil_enable_friend_range
+
+if intersection:
+    print(len(intersection))
+else:
+    print("IMPOSSIBLE")
diff --git "a/Baekjoon Online Judge/\354\202\254\353\236\221\354\235\200_\352\263\240\353\240\244\353\214\200\354\236\205\353\213\210\353\213\244.py" "b/Baekjoon Online Judge/\354\202\254\353\236\221\354\235\200_\352\263\240\353\240\244\353\214\200\354\236\205\353\213\210\353\213\244.py"
new file mode 100644
index 0000000..0daa1f6
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\202\254\353\236\221\354\235\200_\352\263\240\353\240\244\353\214\200\354\236\205\353\213\210\353\213\244.py"	
@@ -0,0 +1,5 @@
+TARGET_STRING = "LoveisKoreaUniversity"
+
+count = int(input())
+
+print(" ".join([TARGET_STRING] * count))
diff --git "a/Baekjoon Online Judge/\354\202\274\352\260\201\355\230\225.py" "b/Baekjoon Online Judge/\354\202\274\352\260\201\355\230\225.py"
new file mode 100644
index 0000000..0a72239
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\202\274\352\260\201\355\230\225.py"	
@@ -0,0 +1,6 @@
+def solution(w: int, h: int) -> str:
+    return f"{w * h / 2:.1f}"
+
+
+w, h = list(map(int, input().split()))
+print(solution(w, h))
diff --git "a/Baekjoon Online Judge/\354\204\240\353\254\274.py" "b/Baekjoon Online Judge/\354\204\240\353\254\274.py"
new file mode 100644
index 0000000..ddccadf
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\204\240\353\254\274.py"	
@@ -0,0 +1,4 @@
+_, x = map(int, input().split())
+a = list(map(int, input().split()))
+print(min(ele[0] * x + ele[1] * x for ele in list(zip(a, a[1:]))))
+    
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\354\204\270\354\240\234\352\263\261\354\235\230_\355\225\251.py" "b/Baekjoon Online Judge/\354\204\270\354\240\234\352\263\261\354\235\230_\355\225\251.py"
new file mode 100644
index 0000000..eef1ae7
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\204\270\354\240\234\352\263\261\354\235\230_\355\225\251.py"	
@@ -0,0 +1,16 @@
+def solution_line_1(n: int) -> int:
+    return sum(i for i in range(1, n + 1))
+
+
+def solution_line_2(n: int) -> int:
+    return solution_line_1(n) ** 2
+
+
+def solution_line_3(n: int) -> int:
+    return sum(i**3 for i in range(1, n + 1))
+
+
+n = int(input())
+print(solution_line_1(n))
+print(solution_line_2(n))
+print(solution_line_3(n))
diff --git "a/Baekjoon Online Judge/\354\212\244\354\234\204\355\212\270\354\275\230_\352\260\200\352\262\251_\352\265\254\355\225\230\352\270\260.py" "b/Baekjoon Online Judge/\354\212\244\354\234\204\355\212\270\354\275\230_\352\260\200\352\262\251_\352\265\254\355\225\230\352\270\260.py"
new file mode 100644
index 0000000..2dd1138
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\212\244\354\234\204\355\212\270\354\275\230_\352\260\200\352\262\251_\352\265\254\355\225\230\352\270\260.py"	
@@ -0,0 +1,9 @@
+VAT = 0.1
+
+
+def solution(b: int) -> int:
+    return round(b / (1 + VAT))
+
+
+b = int(input())
+print(solution(b))
diff --git "a/Baekjoon Online Judge/\354\225\210\353\260\226_\353\260\226\354\225\210_\352\263\204\353\213\250_\354\227\255\352\263\204\353\213\250.py" "b/Baekjoon Online Judge/\354\225\210\353\260\226_\353\260\226\354\225\210_\352\263\204\353\213\250_\354\227\255\352\263\204\353\213\250.py"
new file mode 100644
index 0000000..03d1f91
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\225\210\353\260\226_\353\260\226\354\225\210_\352\263\204\353\213\250_\354\227\255\352\263\204\353\213\250.py"	
@@ -0,0 +1,10 @@
+result = {
+    "fdsajkl;": "in-out",
+    "jkl;fdsa": "in-out",
+    "asdf;lkj": "out-in",
+    ";lkjasdf": "out-in",
+    "asdfjkl;": "stairs",
+    ";lkjfdsa": "reverse",
+}.get(input(), "molu")
+
+print(result)
diff --git "a/Baekjoon Online Judge/\354\225\224\355\230\270_\353\247\214\353\223\244\352\270\260.py" "b/Baekjoon Online Judge/\354\225\224\355\230\270_\353\247\214\353\223\244\352\270\260.py"
new file mode 100644
index 0000000..eaacd7d
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\225\224\355\230\270_\353\247\214\353\223\244\352\270\260.py"	
@@ -0,0 +1,30 @@
+from itertools import combinations
+
+VOWELS = "aeiou"
+CONSONANTS = "bcdfghjklmnpqrstvwxyz"
+
+
+def solution(l: int, target_alphabets: list[str]):
+    sorted_target_alphabets = sorted(target_alphabets)
+
+    result = []
+
+    for combination in combinations(sorted_target_alphabets, l):
+        if not _validate_conditions(combination):
+            continue
+        result.append("".join(combination))
+
+    return "\n".join(result)
+
+
+def _validate_conditions(combination: list[str]) -> bool:
+    return (
+        len(set(combination) & set(VOWELS)) >= 1
+        and len(set(combination) & set(CONSONANTS)) >= 2
+    )
+
+
+if __name__ == "__main__":
+    l, _ = list(map(int, input().split()))
+    target_alphabets = input().split()
+    print(solution(l, target_alphabets))
diff --git "a/Baekjoon Online Judge/\354\227\230\353\246\254\354\212\244_\355\212\270\353\236\231_\353\247\244\354\271\255.py" "b/Baekjoon Online Judge/\354\227\230\353\246\254\354\212\244_\355\212\270\353\236\231_\353\247\244\354\271\255.py"
new file mode 100644
index 0000000..823b661
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\227\230\353\246\254\354\212\244_\355\212\270\353\236\231_\353\247\244\354\271\255.py"	
@@ -0,0 +1,5 @@
+n = int(input())
+tracks = input().split()
+target_apply_track = input()
+
+print(tracks.count(target_apply_track))
diff --git "a/Baekjoon Online Judge/\354\234\240\354\271\230\354\233\220\354\203\235_\355\214\214\353\214\225\354\235\264_\353\217\214\353\263\264\352\270\260.py" "b/Baekjoon Online Judge/\354\234\240\354\271\230\354\233\220\354\203\235_\355\214\214\353\214\225\354\235\264_\353\217\214\353\263\264\352\270\260.py"
new file mode 100644
index 0000000..25d2e6c
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\234\240\354\271\230\354\233\220\354\203\235_\355\214\214\353\214\225\354\235\264_\353\217\214\353\263\264\352\270\260.py"	
@@ -0,0 +1,8 @@
+t = int(input())
+_ = int(input())
+f = list(map(int, input().split()))
+
+if t <= sum(f):
+    print("Padaeng_i Happy")
+else:
+    print("Padaeng_i Cry")
diff --git "a/Baekjoon Online Judge/\354\235\264_\353\214\200\355\232\214\353\212\224_\354\235\264\354\240\234_\354\240\234_\352\262\201\353\213\210\353\213\244.py" "b/Baekjoon Online Judge/\354\235\264_\353\214\200\355\232\214\353\212\224_\354\235\264\354\240\234_\354\240\234_\352\262\201\353\213\210\353\213\244.py"
new file mode 100644
index 0000000..ad014b2
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\235\264_\353\214\200\355\232\214\353\212\224_\354\235\264\354\240\234_\354\240\234_\352\262\201\353\213\210\353\213\244.py"	
@@ -0,0 +1,3 @@
+a, p, c = map(int, input().split())
+
+print(max(a + c, p))
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\354\235\264_\353\263\204\354\235\200_\353\254\264\354\212\250_\354\203\211\354\235\274\352\271\214.py" "b/Baekjoon Online Judge/\354\235\264_\353\263\204\354\235\200_\353\254\264\354\212\250_\354\203\211\354\235\274\352\271\214.py"
new file mode 100644
index 0000000..64e796a
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\235\264_\353\263\204\354\235\200_\353\254\264\354\212\250_\354\203\211\354\235\274\352\271\214.py"	
@@ -0,0 +1,32 @@
+"""
+빨간색: 620nm 이상 780nm 이하
+주황색: 590nm 이상 620nm 미만
+노란색: 570nm 이상 590nm 미만
+초록색: 495nm 이상 570nm 미만
+파란색: 450nm 이상 495nm 미만
+남색: 425nm 이상 450nm 미만
+보라색: 380nm 이상 425nm 미만
+"""
+
+
+def solution(wavelength: int) -> str:
+    if 620 <= wavelength <= 780:
+        return "Red"
+    elif 590 <= wavelength < 620:
+        return "Orange"
+    elif 570 <= wavelength < 590:
+        return "Yellow"
+    elif 495 <= wavelength < 570:
+        return "Green"
+    elif 450 <= wavelength < 495:
+        return "Blue"
+    elif 425 <= wavelength < 450:
+        return "Indigo"
+    elif 380 <= wavelength < 425:
+        return "Violet"
+    else:
+        return "Invalid"
+
+
+wavelength = int(input())
+print(solution(wavelength))
diff --git "a/Baekjoon Online Judge/\354\236\254\354\210\230\352\260\225.py" "b/Baekjoon Online Judge/\354\236\254\354\210\230\352\260\225.py"
new file mode 100644
index 0000000..b8774ff
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\236\254\354\210\230\352\260\225.py"	
@@ -0,0 +1,13 @@
+retrial_subject_code = input()
+available_subject_count = int(input())
+
+
+count = 0
+for _ in range(available_subject_count):
+    input_subject_code = input()
+    target = retrial_subject_code[:5]
+    if input_subject_code[:5] == target:
+        count += 1
+
+print(count)
+
diff --git "a/Baekjoon Online Judge/\354\240\225\353\263\264\353\263\264\355\230\270\355\225\231\353\266\200_\353\217\231\354\225\204\353\246\254_\354\206\214\352\260\234.py" "b/Baekjoon Online Judge/\354\240\225\353\263\264\353\263\264\355\230\270\355\225\231\353\266\200_\353\217\231\354\225\204\353\246\254_\354\206\214\352\260\234.py"
new file mode 100644
index 0000000..d7a6810
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\240\225\353\263\264\353\263\264\355\230\270\355\225\231\353\266\200_\353\217\231\354\225\204\353\246\254_\354\206\214\352\260\234.py"	
@@ -0,0 +1,15 @@
+def solution(character: str) -> str:
+    if character == "M":
+        return "MatKor"
+    elif character == "W":
+        return "WiCys"
+    elif character == "C":
+        return "CyKor"
+    elif character == "A":
+        return "AlKor"
+    else:
+        return "$clear"
+
+
+character = input()
+print(solution(character))
diff --git "a/Baekjoon Online Judge/\354\240\225\353\263\264\354\204\254\354\235\230_\353\214\200\354\244\221\352\265\220\355\206\265.py" "b/Baekjoon Online Judge/\354\240\225\353\263\264\354\204\254\354\235\230_\353\214\200\354\244\221\352\265\220\355\206\265.py"
new file mode 100644
index 0000000..ff9cee4
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\240\225\353\263\264\354\204\254\354\235\230_\353\214\200\354\244\221\352\265\220\355\206\265.py"	
@@ -0,0 +1,11 @@
+def solution(a: int, b: int) -> str:
+    if a < b:
+        return "Bus"
+    elif a > b:
+        return "Subway"
+    else:
+        return "Anything"
+
+
+_, a, b = list(map(int, input().split()))
+print(solution(a, b))
diff --git "a/Baekjoon Online Judge/\354\244\200\354\230\201\354\235\264\354\235\230_\353\223\261\352\270\211.py" "b/Baekjoon Online Judge/\354\244\200\354\230\201\354\235\264\354\235\230_\353\223\261\352\270\211.py"
new file mode 100644
index 0000000..5358ec2
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\244\200\354\230\201\354\235\264\354\235\230_\353\223\261\352\270\211.py"	
@@ -0,0 +1,30 @@
+from math import floor
+
+n, k = map(int, input().split())
+ranks = list(map(int, input().split()))
+
+result = []
+
+for rank in ranks:
+    percentage = floor(rank / n * 10**2) / 10**2
+
+    if 0 <= percentage <= 0.04:
+        result.append(1)
+    elif 0.04 < percentage <= 0.11:
+        result.append(2)
+    elif 0.11 < percentage <= 0.23:
+        result.append(3)
+    elif 0.23 < percentage <= 0.40:
+        result.append(4)
+    elif 0.40 < percentage <= 0.60:
+        result.append(5)
+    elif 0.60 < percentage <= 0.77:
+        result.append(6)
+    elif 0.77 < percentage <= 0.89:
+        result.append(7)
+    elif 0.89 < percentage <= 0.96:
+        result.append(8)
+    else:
+        result.append(9)
+
+print(*result)
diff --git "a/Baekjoon Online Judge/\354\247\200\355\217\220_\354\204\270\352\270\260.py" "b/Baekjoon Online Judge/\354\247\200\355\217\220_\354\204\270\352\270\260.py"
new file mode 100644
index 0000000..b42c6a7
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\247\200\355\217\220_\354\204\270\352\270\260.py"	
@@ -0,0 +1,19 @@
+loop = int(input())
+
+result = []
+
+for _ in range(loop):
+    width, _ = map(int, input().split())
+
+    if width == 136:
+        price = 1000
+    elif width == 142:
+        price = 5000
+    elif width == 148:
+        price = 10000
+    else:
+        price = 50000
+
+    result.append(price)
+
+print(sum(result))
diff --git "a/Baekjoon Online Judge/\354\247\204\355\235\245\354\233\220_\354\204\270\353\257\270\353\202\230.py" "b/Baekjoon Online Judge/\354\247\204\355\235\245\354\233\220_\354\204\270\353\257\270\353\202\230.py"
new file mode 100644
index 0000000..8cbdcf6
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\247\204\355\235\245\354\233\220_\354\204\270\353\257\270\353\202\230.py"	
@@ -0,0 +1,19 @@
+SEMINAR = {
+    "Algorithm": "204",
+    "DataAnalysis": "207",
+    "ArtificialIntelligence": "302",
+    "CyberSecurity": "B101",
+    "Network": "303",
+    "Startup": "501",
+    "TestStrategy": "105",
+}
+
+
+def solution(key: str) -> str:
+    return SEMINAR[key]
+
+
+loop = int(input())
+for _ in range(loop):
+    key = input()
+    print(solution(key))
diff --git "a/Baekjoon Online Judge/\354\262\264\354\212\244_\354\264\210\353\263\264_\353\270\214\354\213\244\354\235\264.py" "b/Baekjoon Online Judge/\354\262\264\354\212\244_\354\264\210\353\263\264_\353\270\214\354\213\244\354\235\264.py"
new file mode 100644
index 0000000..4b3b358
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\262\264\354\212\244_\354\264\210\353\263\264_\353\270\214\354\213\244\354\235\264.py"	
@@ -0,0 +1,55 @@
+from dataclasses import dataclass
+from enum import IntEnum
+
+
+rows = 8
+
+chess_board = []
+
+for _ in range(rows):
+    cols = input()
+    chess_board.append(cols)
+
+black_score = 0
+white_score = 0
+
+
+class Score(IntEnum):
+    K = 0
+    P = 1
+    N = 3
+    B = 3
+    R = 5
+    Q = 9
+
+    @classmethod
+    def get_score(cls, col):
+        col = col.upper()
+
+        if col == "K":
+            return cls.K
+        elif col == "P":
+            return cls.P
+        elif col == "N":
+            return cls.N
+        elif col == "B":
+            return cls.B
+        elif col == "R":
+            return cls.R
+        else:
+            return cls.Q
+
+
+for cols in chess_board:
+    for col in cols:
+        if col == ".":
+            continue
+
+        is_black = col.islower()
+
+        if is_black:
+            black_score += Score.get_score(col)
+        else:
+            white_score += Score.get_score(col)
+
+print(white_score - black_score)
diff --git "a/Baekjoon Online Judge/\354\262\264\354\234\241\354\235\200_\354\210\230\355\225\231\352\263\274\353\252\251_\354\236\205\353\213\210\353\213\244.py" "b/Baekjoon Online Judge/\354\262\264\354\234\241\354\235\200_\354\210\230\355\225\231\352\263\274\353\252\251_\354\236\205\353\213\210\353\213\244.py"
new file mode 100644
index 0000000..b28eea5
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\262\264\354\234\241\354\235\200_\354\210\230\355\225\231\352\263\274\353\252\251_\354\236\205\353\213\210\353\213\244.py"	
@@ -0,0 +1,4 @@
+h = int(input())
+w = int(input())
+
+print(min(h, w) * 100 // 2)
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\354\275\224\353\223\234\353\247\210\354\212\244\355\204\260_2023.py" "b/Baekjoon Online Judge/\354\275\224\353\223\234\353\247\210\354\212\244\355\204\260_2023.py"
new file mode 100644
index 0000000..7e8817b
--- /dev/null
+++ "b/Baekjoon Online Judge/\354\275\224\353\223\234\353\247\210\354\212\244\355\204\260_2023.py"	
@@ -0,0 +1,10 @@
+def solution(input_word: str) -> str:
+    return {
+        "SONGDO": "HIGHSCHOOL",
+        "CODE": "MASTER",
+        "2023": "0611",
+        "ALGORITHM": "CONTEST",
+    }[input_word]
+
+
+print(solution(input()))
diff --git "a/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\352\260\200\354\247\200.py" "b/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\352\260\200\354\247\200.py"
new file mode 100644
index 0000000..58d386a
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\352\260\200\354\247\200.py"	
@@ -0,0 +1,5 @@
+n = int(input())
+m = int(input())
+k = int(input())
+
+print(int(m / n * k))
diff --git "a/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\354\236\221\354\235\200_\353\266\204\354\210\230.c" "b/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\354\236\221\354\235\200_\353\266\204\354\210\230.c"
new file mode 100644
index 0000000..e69de29
diff --git "a/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\354\236\221\354\235\200_\353\266\204\354\210\230.py" "b/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\354\236\221\354\235\200_\353\266\204\354\210\230.py"
new file mode 100644
index 0000000..7b2c7d7
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\354\236\221\354\235\200_\353\266\204\354\210\230.py"	
@@ -0,0 +1,11 @@
+x, n = map(int, input().split())
+
+result = 0
+
+for _ in range(n):
+    if x % 2 == 0:
+        x = int(x / 2) ^ 6
+    else:
+        x = int(2 * x) ^ 6
+
+print(x)
diff --git "a/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\355\225\231\352\265\220_\354\235\264\353\246\204.py" "b/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\355\225\231\352\265\220_\354\235\264\353\246\204.py"
new file mode 100644
index 0000000..dfc3f82
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\212\271\353\263\204\355\225\234_\355\225\231\352\265\220_\354\235\264\353\246\204.py"	
@@ -0,0 +1,19 @@
+NLCS = "North London Collegiate School"
+BHA = "Branksome Hall Asia"
+KIS = "Korea International School"
+SJA = "St. Johnsbury Academy"
+
+
+def solution(input_word: str) -> str:
+    if input_word == "NLCS":
+        return NLCS
+    elif input_word == "BHA":
+        return BHA
+    elif input_word == "KIS":
+        return KIS
+    else:
+        return SJA
+
+
+input_word = input()
+print(solution(input_word))
diff --git "a/Baekjoon Online Judge/\355\214\251\355\206\240\353\246\254\354\226\274_3.py" "b/Baekjoon Online Judge/\355\214\251\355\206\240\353\246\254\354\226\274_3.py"
new file mode 100644
index 0000000..e529bd9
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\214\251\355\206\240\353\246\254\354\226\274_3.py"	
@@ -0,0 +1,9 @@
+import math
+
+
+def solution(n: int) -> int:
+    return math.factorial(n)
+
+
+n = int(input())
+print(solution(n))
diff --git "a/Baekjoon Online Judge/\355\225\231\353\262\210\354\235\204_\354\260\276\354\225\204\354\244\230.py" "b/Baekjoon Online Judge/\355\225\231\353\262\210\354\235\204_\354\260\276\354\225\204\354\244\230.py"
new file mode 100644
index 0000000..2893180
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\225\231\353\262\210\354\235\204_\354\260\276\354\225\204\354\244\230.py"	
@@ -0,0 +1,18 @@
+t = int(input())
+standard_score = list(map(int, input().split()))+ [0] * (5 - t)
+
+result = 0
+if standard_score[0] > standard_score[2]:
+    result += (standard_score[0] - standard_score[2]) * 508
+else:
+    result += (standard_score[2] - standard_score[0]) * 108
+
+if standard_score[1] > standard_score[3]:
+    result += standard_score[1] - standard_score[3] * 212
+else:
+    result += abs(standard_score[1] - standard_score[3]) * 305
+
+if standard_score[4] > 0:
+    result += standard_score[4] * 707
+
+print(result * 4763)
\ No newline at end of file
diff --git "a/Baekjoon Online Judge/\355\225\231\354\213\235_\354\202\254\354\243\274\352\270\260.py" "b/Baekjoon Online Judge/\355\225\231\354\213\235_\354\202\254\354\243\274\352\270\260.py"
new file mode 100644
index 0000000..7336daa
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\225\231\354\213\235_\354\202\254\354\243\274\352\270\260.py"	
@@ -0,0 +1,6 @@
+n = int(input())
+menu_prices = [int(input()) for _ in range(n)]
+m = int(input())
+corner_numbers = [int(input()) for _ in range(m)]
+
+print(sum(menu_prices[corner_number - 1] for corner_number in corner_numbers))
diff --git "a/Baekjoon Online Judge/\355\230\270\353\260\230\354\232\260\352\260\200_\355\225\231\352\265\220\354\227\220_\354\247\200\352\260\201\355\225\234_\354\235\264\354\234\240_1.py" "b/Baekjoon Online Judge/\355\230\270\353\260\230\354\232\260\352\260\200_\355\225\231\352\265\220\354\227\220_\354\247\200\352\260\201\355\225\234_\354\235\264\354\234\240_1.py"
new file mode 100644
index 0000000..e03eecf
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\230\270\353\260\230\354\232\260\352\260\200_\355\225\231\352\265\220\354\227\220_\354\247\200\352\260\201\355\225\234_\354\235\264\354\234\240_1.py"	
@@ -0,0 +1,9 @@
+str_, dex, int_, luk, n = map(int, input().split())
+
+sum_of_all_stats = str_ + dex + int_ + luk
+result = 4 * n - sum_of_all_stats
+
+if result <= 0:
+    print("0")
+else:
+    print(result)
diff --git "a/Baekjoon Online Judge/\355\231\200\354\247\235\355\231\200\354\247\235.py" "b/Baekjoon Online Judge/\355\231\200\354\247\235\355\231\200\354\247\235.py"
new file mode 100644
index 0000000..1f8dff7
--- /dev/null
+++ "b/Baekjoon Online Judge/\355\231\200\354\247\235\355\231\200\354\247\235.py"	
@@ -0,0 +1,17 @@
+from collections import Counter
+
+
+_ = int(input())
+k = int(input())
+
+result = Counter(num % 2 == 1 for num in map(int, str(k)))
+
+odd_count = result[True]
+even_count = result[False]
+
+if even_count > odd_count:
+    print(0)
+elif even_count < odd_count:
+    print(1)
+else:
+    print(-1)
diff --git a/kata_2025/project_euler/1.py b/kata_2025/project_euler/1.py
new file mode 100644
index 0000000..a125171
--- /dev/null
+++ b/kata_2025/project_euler/1.py
@@ -0,0 +1,27 @@
+"""
+If we list all the natural numbers below 10
+ that are multiples of 3 or 5,
+ we get 3, 5, 6 and 9.
+ The sum of these multiples is 23.
+
+Find the sum of all the multiples of 3 or 5 below 1000.
+- 3의 배수의 합 + 5의 배수의 합 - 15의 배수의 합 (중복 제거)
+"""
+
+
+def sum_multiples_of(target_number: int, divisor: int) -> int:
+    last = ((target_number - 1) // divisor) * divisor
+    count = last // divisor
+    return (divisor + last) * count // 2
+
+
+def sum_of_multiples(target_number: int, a: int, b: int) -> int:
+    return (
+        sum_multiples_of(target_number, a)
+        + sum_multiples_of(target_number, b)  # 3의 배수의 합
+        - sum_multiples_of(target_number, a * b)  # 5의 배수의 합  # 15의 배수의 합(중복 제거)
+    )
+
+
+if __name__ == "__main__":
+    print(sum_of_multiples(1000, 3, 5))  # 1000 미만의 3 또는 5의 배수의 합
diff --git a/kata_2025/project_euler/2.py b/kata_2025/project_euler/2.py
new file mode 100644
index 0000000..55b462d
--- /dev/null
+++ b/kata_2025/project_euler/2.py
@@ -0,0 +1,23 @@
+"""
+Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:
+
+1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...
+
+By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.
+"""
+
+
+def fibonacci_even_sum(limit: int) -> int:
+    a, b = 1, 2
+    total = 0
+
+    while a <= limit:
+        if a % 2 == 0:
+            total += a
+        a, b = b, a + b
+
+    return total
+
+
+if __name__ == "__main__":
+    print(fibonacci_even_sum(4_000_000))
diff --git a/python/oop/function_overload_sample.py b/python/oop/function_overload_sample.py
new file mode 100644
index 0000000..d230437
--- /dev/null
+++ b/python/oop/function_overload_sample.py
@@ -0,0 +1,29 @@
+from typing import Union
+
+DATA_FORMAT_NORMAL = "normal"
+DATA_FORMAT_NUMBER = "number"
+
+
+class Cell:
+    def set_data_format(self, data_format: str):
+        ...
+
+    def set_data(self, data: str):
+        ...
+
+
+def write(cell: Cell, data: Union[str, int]):
+    if isinstance(data, str):
+        cell.set_data_format(DATA_FORMAT_NORMAL)
+    elif isinstance(data, int):
+        cell.set_data_format(DATA_FORMAT_NUMBER)
+    else:
+        raise TypeError(f"지원하지 않는 타입입니다: {type(data)}")
+
+    cell.set_data(data)
+
+
+# 사용 예시:
+# cell = Cell()
+# write(cell, "Hello")  # 문자열 처리
+# write(cell, 42)       # 숫자 처리
diff --git a/python/oop/intersection_type_test.py b/python/oop/intersection_type_test.py
new file mode 100644
index 0000000..7dff7ca
--- /dev/null
+++ b/python/oop/intersection_type_test.py
@@ -0,0 +1,8 @@
+def stringify(value: int | float) -> str:
+    return str(value)
+
+
+if __name__ == "__main__":
+    print(stringify(1))
+    print(stringify(1.0))
+    print(stringify("1"))
diff --git a/python/oop/location_sensitive_type_checking.py b/python/oop/location_sensitive_type_checking.py
new file mode 100644
index 0000000..3b68b85
--- /dev/null
+++ b/python/oop/location_sensitive_type_checking.py
@@ -0,0 +1,31 @@
+# from typing import TypeGuard, Union
+
+# def is_string(x: object) -> TypeGuard[str]:
+#     return isinstance(x, str)
+
+# def process_value_custom_check(x: int | str) -> None:
+#     if isinstance(x, str):
+#         assert isinstance(x, str)  # mypy에게 타입을 명시적으로 알림
+#         print(x.upper())  # 오류 없음
+#     else:
+#         print(x + 1)  # 오류 없음
+
+# process_value_custom_check("hello")
+# process_value_custom_check(123)
+
+
+from typing import Optional
+
+def is_none(x: Optional[str]) -> bool:
+    return x is None
+
+def handle_value(x: Optional[str]) -> None:
+    if is_none(x):
+        print("No value!")
+        return
+    # 여기서는 x가 None이 아님을 확정
+    # 정적 분석기는 x를 'str'로 간주
+    print(x.upper())  # OK
+
+handle_value("hello")
+handle_value(None)
diff --git a/python/oop/structure_typing_sample.py b/python/oop/structure_typing_sample.py
new file mode 100644
index 0000000..9535efb
--- /dev/null
+++ b/python/oop/structure_typing_sample.py
@@ -0,0 +1,27 @@
+from typing import Protocol, runtime_checkable
+
+
+class PersonProtocol(Protocol):
+    name: str
+    age: int
+
+
+class Person:
+    def __init__(self, name: str, age: int):
+        self.name = name
+        self.age = age
+
+
+class Employee:
+    def __init__(self, name: str, height: int, department: str):
+        self.name = name
+        self.height = height
+        self.department = department
+
+
+def greet(person: PersonProtocol):
+    print(f"Hello, {person.name}, age {person.height}")
+
+
+employee = Employee("Alice", 30, "HR")
+greet(employee)
diff --git a/python/polymorphism/choose.py b/python/polymorphism/choose.py
new file mode 100644
index 0000000..400ed8d
--- /dev/null
+++ b/python/polymorphism/choose.py
@@ -0,0 +1,27 @@
+from typing import TypeVar, Generic, Type
+
+T = TypeVar('T')
+
+class Choose(Generic[T]):
+    @classmethod
+    def of(cls, type_: Type[T], v1: T, v2: T) -> T:
+        """타입을 명시적으로 지정할 수 있는 제네릭 메서드
+        
+        Args:
+            type_ (Type[T]): 명시적 타입
+            v1 (T): 첫 번째 값
+            v2 (T): 두 번째 값
+        
+        Returns:
+            T: 사용자 입력이 0이면 v1, 아니면 v2를 반환
+        """
+        print(f"Type: {type_.__name__}, Values: {v1}, {v2}")
+        result = int(input())
+        return v1 if result == 0 else v2
+
+
+if __name__ == "__main__":
+    # 자바스러운 방식으로 사용
+    print(Choose.of(int, 1, 0))
+    print(Choose.of(str, "hello", "world"))
+    print(Choose.of(float, 1.5, 2.5))
\ No newline at end of file