diff --git a/one_liner.py b/one_liner.py
index 2414aae..d705e68 100644
--- a/one_liner.py
+++ b/one_liner.py
@@ -1 +1,4 @@
-print([(i, j) for i in range(3) for j in range(7)])
\ No newline at end of file
+print([(i, j) for i in range(3) for j in range(7)])
+
+#Swapping two variables
+a, b = b, a