diff --git a/Session 4 - 19-05-2022.py b/Session 4 - 19-05-2022.py
index e532070..0a4fff6 100644
--- a/Session 4 - 19-05-2022.py	
+++ b/Session 4 - 19-05-2022.py	
@@ -1,3 +1,6 @@
+# Copyright 2022, Rayyan Hodges, TAFE NSW
+# rayyan.hodges@studytafensw.edu.au
+
 #Excercise 1
 a = 200
 b = 200