diff --git a/04_Day_Strings/04_strings.md b/04_Day_Strings/04_strings.md
index 4377d5eba..0a7840d15 100644
--- a/04_Day_Strings/04_strings.md
+++ b/04_Day_Strings/04_strings.md
@@ -328,16 +328,16 @@ print(challenge.expandtabs(10)) # 'thirty    days      of        python'
 
 ```py
 challenge = 'thirty days of python'
-print(challenge.find('y'))  # 16
-print(challenge.find('th')) # 17
+print(challenge.find('y'))  # 5
+print(challenge.find('th')) # 0
 ```
 
 - rfind(): Returns the index of the last occurrence of a substring, if not found returns -1
 
 ```py
 challenge = 'thirty days of python'
-print(challenge.rfind('y'))  # 5
-print(challenge.rfind('th')) # 1
+print(challenge.rfind('y'))  # 16
+print(challenge.rfind('th')) # 17
 ```
 
 - format(): formats string into a nicer output