diff --git a/sendyram/course1.py b/sendyram/course1.py
new file mode 100644
index 0000000..be2d0f1
--- /dev/null
+++ b/sendyram/course1.py
@@ -0,0 +1,49 @@
+def test_conditional():
+    name = "Sendy"
+    
+    if(name == "Sendy"):
+        print("this is if")
+    elif(name == "Domu"):
+        print("this is elif")
+    else:
+        print("this is else")
+        
+def test_looping():
+    for x in range(0,5):
+        print("nilai x",x)
+    
+    i = 0
+    while(i<5):
+        print("nilai i", i)
+
+#print(test_looping())   
+
+global_var = 10
+def test_namespace():
+    private_var = 15
+    print("private var = ",private_var)
+    print("global var = ",global_var)
+
+print(test_namespace())
+
+def test_string_operator():
+    full_string = "this is full string"
+    temp_string = "temp string"
+    upper_string = "this is upper"
+    lower_string = "this is lower"
+    
+    print(full_string+temp_string)
+    print(full_string[3:6])
+    print(upper_string.lower())
+    print(lower_string.upper())
+    print(len(full_string))
+    print(full_string.strip('t'))
+    print(full_string.replace("full","some"))
+    print(full_string.split(" "))
+    
+test_string_operator()
+
+def test_function(value):
+    return value;
+
+print(test_function(4))
\ No newline at end of file
diff --git a/sendyram/dictionary.py b/sendyram/dictionary.py
new file mode 100644
index 0000000..24fdb72
--- /dev/null
+++ b/sendyram/dictionary.py
@@ -0,0 +1,14 @@
+class kucing:
+    def __init__(__args__):
+        pass
+
+
+animal = {}
+animal["lion"] = 10
+animal["whale"] = 30
+animal[1] = "whale"
+
+you = kucing()
+animal[you] = 1
+
+print(animal)
\ No newline at end of file
diff --git a/sendyram/list.py b/sendyram/list.py
new file mode 100644
index 0000000..c443255
--- /dev/null
+++ b/sendyram/list.py
@@ -0,0 +1,13 @@
+list = []
+
+list.append(1)
+list.append(2)
+list.append(3)
+
+list.append(("Sendy", "Gugu"))
+
+plants = {}
+plants["durian"] = 23
+list.append(plants)
+
+print(list)
\ No newline at end of file
diff --git a/sendyram/list2d.py b/sendyram/list2d.py
new file mode 100644
index 0000000..825ddd9
--- /dev/null
+++ b/sendyram/list2d.py
@@ -0,0 +1,14 @@
+list2d = []
+list2d.append([])
+list2d.append([])
+
+list2d[0].append(1)
+list2d[0].append(2)
+
+list2d[1].append("Simpang")
+list2d[1].append("Dogan")
+
+for y in list2d:
+    for x in y:
+        print(x, end=" ")
+    print()
\ No newline at end of file
diff --git a/sendyram/list_comprehension.py b/sendyram/list_comprehension.py
new file mode 100644
index 0000000..61ded31
--- /dev/null
+++ b/sendyram/list_comprehension.py
@@ -0,0 +1,7 @@
+numbers = [1, 2, 3]
+
+multiply100 = [number * 10 for number in numbers]
+print(multiply100)
+
+result = [number * 100 for number in numbers]
+print(result)
\ No newline at end of file
diff --git a/sendyram/list_loop.py b/sendyram/list_loop.py
new file mode 100644
index 0000000..083a626
--- /dev/null
+++ b/sendyram/list_loop.py
@@ -0,0 +1,3 @@
+students = ["Sendy", "Rizky", "Farhan", "Aras"]
+for student in students:
+    print(student)
\ No newline at end of file
diff --git a/sendyram/list_method.py b/sendyram/list_method.py
new file mode 100644
index 0000000..7188a4d
--- /dev/null
+++ b/sendyram/list_method.py
@@ -0,0 +1,19 @@
+students = ["Sendy"]
+students.append("Ramadhan")
+print(students)
+
+students.insert(1, "D")
+print(students)
+
+woman_students = ["Runu", "Rana", "Rini", "Rono"]
+students.extend(woman_students[0:4])
+print(students)
+
+students.sort()
+print(students)
+
+students.reverse()
+print(students)
+
+students.remove("Ramadhan")
+print(students)
\ No newline at end of file
diff --git a/sendyram/tuple.py b/sendyram/tuple.py
new file mode 100644
index 0000000..1271288
--- /dev/null
+++ b/sendyram/tuple.py
@@ -0,0 +1,2 @@
+my_tuple = tuple(["box", "blue"])
+print(my_tuple)
\ No newline at end of file
diff --git a/sendyram/tuple_immutable.py b/sendyram/tuple_immutable.py
new file mode 100644
index 0000000..63579f9
--- /dev/null
+++ b/sendyram/tuple_immutable.py
@@ -0,0 +1,3 @@
+tuple = ('box', 'blue', 'green')
+
+tuple[0] = 'box'
\ No newline at end of file
diff --git a/sendyram/tuple_pack_unpack.py b/sendyram/tuple_pack_unpack.py
new file mode 100644
index 0000000..902ee44
--- /dev/null
+++ b/sendyram/tuple_pack_unpack.py
@@ -0,0 +1,5 @@
+pair = ("lion", "whale")
+(key, value) = pair
+
+print(key)
+print(value)
\ No newline at end of file