#!/usr/local/bin/python
# KMB 2002 Nov 13
# Test: echo "The cat sat on the the dog.  Why why why?" | thethe.py
# mcopy -o thethe.py a:

from sys import stdin
from re  import findall,compile,IGNORECASE

for r in findall(compile(r'\b(\w+)\s+\1\b',IGNORECASE),stdin.read()):
  print "Repeated word: '"+r+"'"