diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -1,4 +1,4 @@
 S = input()
 list = ["ACE", "BDF", "CEG", "DFA", "EGB", "FAC", "GBD"]
 
-print("YES" if S in list else "NO")
+print("Yes" if S in list else "No")
