diff --git a/Modules/library.py b/Modules/library.py
new file mode 100644
index 0000000..3ff7f48
--- /dev/null
+++ b/Modules/library.py
@@ -0,0 +1,2 @@
+def square(x):
+    return x*x
diff --git a/Modules/main.py b/Modules/main.py
new file mode 100644
index 0000000..653924e
--- /dev/null
+++ b/Modules/main.py
@@ -0,0 +1,4 @@
+import library as l
+
+out = l.square(5)
+print(out)