Update README.md

2 years ago · c86e37cef7
1 changed files with 1 additions and 1 deletions
--- a/subjects/front-back/README.md
+++ b/subjects/front-back/README.md
@ -6,7 +6,7 @@ Write a program that prints the previous and next alphabet of the alphabet.
 - If the number of arguments is different from 1, print (`'\n'`).
 - If the length of the argument is different from 1, print (`'\n'`)
 - If the argument is not a letter, print (`'\n'`)
- Print the previous alphabet and the next alphabet except for the last and the first alphabet of the alphabet.
+- There are no letters to print before 'a' or after 'z'.

 ### Usage