#!/usr/bin/python
import sys

CIPHER = "OMQEMDUEQMEK"
LETTERS = list("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
CIPHER = ""
shift = 1

while i < len(LETTERS):
 for c in CIPHER:
  if c in LETTERS:
   CIPHER += LETTERS[(LETTERS.index(c)+shift)%(len(LETTERS))]
 print("Shift used: " + str(shift))
 print("Ciphertext: " + CIPHER)
 print("CIPHER: " + CIPHER)
 shift = shift + 1
 CIPHER = ""