#!/usr/bin/env python
import sys

# define function for sorting word, frequency pairs
def comPair(p1,p2):
    rval = cmp(p1[1] , p2[1]) * -1
    if rval == 0:
        rval = cmp(p1[0],p2[0]) 
    return rval 

inFile = open(sys.argv[1])

wordList = inFile.read().split()
wordDict = {}

for word in wordList:
    lw = word.lower()
    wordDict[lw] = wordDict.setdefault(lw,0) + 1

wordFreqPairs = wordDict.items()
wordFreqPairs.sort(cmp=comPair)

for pair in wordFreqPairs:
    print "%d\t%s"%(pair[1], pair[0])