diff --git a/clean.sh b/clean.sh
index 83b9edfa..bb4f9dd4 100755
--- a/clean.sh
+++ b/clean.sh
@@ -35,4 +35,5 @@ rm v/code
 rm emojicode/code emojicode/code.o
 rm -f chez/code.so
 rm -rf clojure/classes clojure/.cpcache
-rm cobol/main
\ No newline at end of file
+rm cobol/main
+rm -f cython/code.c cython/code
\ No newline at end of file
diff --git a/compile.sh b/compile.sh
index 61a8393c..df210ed0 100755
--- a/compile.sh
+++ b/compile.sh
@@ -33,8 +33,9 @@ emojicodec emojicode/code.emojic
 echo '(compile-program "chez/code.ss")' | chez --optimize-level 3 -q
 (cd clojure && mkdir -p classes && clojure -Sdeps '{:paths ["."]}' -M -e "(compile 'code)")
 cobc -I /opt/homebrew/include/ -O -O2 -O3 -Os -x -o cobol/main cobol/main.cbl
-lake build --dir lean4 
+lake build --dir lean4
 #dotnet publish fsharp -o fsharp/code-aot /p:PublishAot=true /p:OptimizationPreference=Speed
 # haxe --class-path haxe -main Code --jvm haxe/code.jar # was getting errors running `haxelib install hxjava`
 #dotnet publish csharp -o csharp/code-aot /p:PublishAot=true /p:OptimizationPreference=Speed
-#gnatmake -O3 -gnat2022 -gnatp -flto ada/code.adb -D ada -o ada/code
\ No newline at end of file
+#gnatmake -O3 -gnat2022 -gnatp -flto ada/code.adb -D ada -o ada/code
+cd cython && pip install cython && cython code.pyx --embed && clang $(python-config --includes) $(python-config --libs) -lpython3.13 -O3 code.c -o code
diff --git a/loops/cython/code.pyx b/loops/cython/code.pyx
new file mode 100644
index 00000000..12865c6a
--- /dev/null
+++ b/loops/cython/code.pyx
@@ -0,0 +1,19 @@
+import sys
+import random
+
+
+def main():
+    cdef int u, r, i, j
+    cdef int a[10000]
+
+    u = int(sys.argv[1])  # Get an input number from the command line
+    r = random.randint(0, 10000)  # Get a random number 0 <= r < 10k
+    a = [0] * 10000  # Array of 10k elements initialized to 0
+    for i in range(10000):  # 10k outer loop iterations
+        for j in range(100000):  # 100k inner loop iterations, per outer loop iteration
+            a[i] += j % u  # Simple sum
+        a[i] += r  # Add a random value to each element in array
+    print(a[r])  # Print out a single element from the array
+
+
+main()
diff --git a/run.sh b/run.sh
index 1dbccc70..5c6f9023 100755
--- a/run.sh
+++ b/run.sh
@@ -64,4 +64,5 @@ run "Babashka" "bb" "bb/code.clj"
 #run "Haxe JVM" "java -jar haxe/code.jar" # was getting errors running `haxelib install hxjava`
 #run "Ada" "./ada/code"
 #run "D" "./d/code" # Seems to not have an arm / M1 version
-#run "Java GraalVM" "./jvm.code"
\ No newline at end of file
+#run "Java GraalVM" "./jvm.code"
+run "Cython" "./cython/code 40"