diff --git a/unit01_cipher_fundamentals/src/c_01.py b/unit01_cipher_fundamentals/src/c_01.py
index e2f202f..6f8618f 100644
--- a/unit01_cipher_fundamentals/src/c_01.py
+++ b/unit01_cipher_fundamentals/src/c_01.py
@@ -1,7 +1,8 @@
-message = raw_input('Enter message: ')
+message = input('Enter message: ')
 e =  input('Enter exponent: ') 
 p = input('Enter prime ')
 
 cipher = (int(message) ** int(e)) % int(p)
 print (cipher)
 
+