#!python

import operator

def read_text(fn):
  with open(fn, 'r') as f:
    lines = f.readlines()
    lookup = {}
    for line in lines:
      line = line.strip()
      total, fn = line.split(' ')
      lookup[fn] = int(total)
    return lookup

new = read_text('new2.txt')
old = read_text('new.txt')

compare = {}
for key in sorted(new.keys()):
  if key in old:
    diff = new[key] - old[key]
    compare[key] = diff

sorted_compare = sorted(compare.items(), key=operator.itemgetter(1))
for key, diff in sorted_compare:
  print("{}\t{}".format(diff, key))