diff --git a/build-logic/004_strings.md b/build-logic/004_strings.md
index b81ca54..84372b5 100644
--- a/build-logic/004_strings.md
+++ b/build-logic/004_strings.md
@@ -42,6 +42,6 @@
 
 1. A program that counts the value of each character and prints the most repeated character?
 
-1. Write a program to toggle case of each character of the string "good afternoon" (example: "neogcamp" ⇒ "nEoGcAmP" )
+1. Write a program to toggle case of each character of the string "good afternoon" (example: "nEoGcAMP" ⇒ "NeOgCamp" )
 
 1. Given a string "how was your day?" and a word "how", write a program that removes the occurrence of the specified word from given sentence. ( input: string⇒"programming camp are amazing",word⇒ "programming"; output:" camp are amazing")