#!/usr/bin/env ruby

require 'zipf'
require 'set'

to_exclude0 = {}
to_exclude1 = {}
f = ReadFile.new ARGV[0]

while line = f.gets
  p0, p1 = line.strip.split "\t"
  to_exclude0[p0] = true
  to_exclude1[p1] = true
end

while line = STDIN.gets
  p0, p1 = line.strip.split "\t"
  if not to_exclude0.has_key? p0 and not to_exclude1.has_key? p1
    puts line
  end
end