diff --git a/05-caesar-cipher/caesar.py b/05-caesar-cipher/caesar.py
index 80eb5e3..185fa80 100644
--- a/05-caesar-cipher/caesar.py
+++ b/05-caesar-cipher/caesar.py
@@ -1,5 +1,5 @@
 def char_shift(char, shift):
-	start = 65 if char.isupper() else 97
+	start = ord('a') if char.isupper() else ord('A')
 	char = ord(char) - start
 	shift = (char + shift) % 26
 	return chr(shift+start)
@@ -11,6 +11,9 @@ def caesar(message, shift):
 			letter = char_shift(letter, shift)
 		out += letter
 
+		# or in one line
+		# out += char_shift(letter, shift) if letter.isalpha() else letter
+
 	return out
 
 def decrypt_caesar(message, shift):