#!/usr/bin/python
# popgrep3 - grep for abbreviations of places that say "pop"
# version 3: compile a single pattern
import fileinput
import re
popstates = ["CO","ON","MI","WI","MN"]
state_re = re.compile(r"\b(?:"+"|".join(popstates)+r")\b")
for line in fileinput.input():
    if state_re.search(line):
        print line