diff --git a/kjg/python.org b/kjg/python.org
index 0656a8c..d631490 100644
--- a/kjg/python.org
+++ b/kjg/python.org
@@ -97,4 +97,7 @@ How to use function with file
 **** ex21
 How to use fucntion with return
 **** ex22
-repeat from ex2 to ex21
+repeat from ex1 to ex21
+" # () ' + . < ? , = / % - * {} \n \t 
+open read close truncate def return print
+