38-caesarcipher.py

def CaesarCipher(str,num): 
  return "".join(chr((ord('a') if i.islower() else ord('A'))+(ord(i)-(ord('a') if i.islower() else ord('A'))+num)%26) if i.isalpha() else i for i in str)
    
    
# keep this function call here  
# to see how to enter arguments in Python scroll down
print CaesarCipher(raw_input())