#!/usr/bin/python

from sys import argv

mem = [{}, {}]

def flip(x, y): if y not in mem[x]: mem[x][y] = 1 else: mem[x][y] = 1 - mem[x][y] return mem[x][y]

with open(argv[1]) as f: lines = f.readlines()

while True: for line in lines: l = list(map(int, line.split())) x = l[0] for i in range(1, len(l)): x = flip(x, l[i]) print(x) if 0 not in mem[0] or mem[0][0] == 0: exit()