diff --git a/subjects/front-back/README.md b/subjects/front-back/README.md
index 44631d46..4e65a145 100644
--- a/subjects/front-back/README.md
+++ b/subjects/front-back/README.md
@@ -6,7 +6,7 @@
     - 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 alphabet of the alphabet.
+    - Print the previous alphabet and the next alphabet except for the last and the first alphabet of the alphabet.
 
 ### Usage