new_contents: def xor_encrypt(key, text):
      xored = []
      for idx, ch in enumerate(text):
          xored.append(chr(ord(key[idx % len(key)]) ^ ord(ch)))
      return ''.join(xored)
  
  
  if __name__ == '__main__':
      correct_xored = ["0b3637272a2b2e63622c2e69692a23693a2a3c6324202d623d63343c2a26226324272765272a282b2f20430a652e2c652a3124333a653e2b2027630c692b20283165286326302e27282f"]
      texts = ["Burning 'em, if you ain't quick and nimble\nI go crazy when I hear a cymbal"]
      key = "ICE"
      for i, text in enumerate(texts):
          xored_text = xor_encrypt(key, text)
          print xored_text.encode('hex')
          print correct_xored[i]
  
subject: Add problem 5