import sys,random,bisect
from collections import deque,defaultdict
from heapq import heapify,heappop,heappush
from itertools import permutations
from math import log,gcd

input = lambda :sys.stdin.readline().rstrip()
mi = lambda :map(int,input().split())
li = lambda :list(mi())

N,M = mi()
vec = []
for i in range(M):
    A = int(input())
    B = li()
    y = int(input())
    c = 0
    for b in B:
        c += 1<<(b-1)
    vec.append((c,y))

def solve(bit):
    bit_vec = []
    for i in range(M):
        c,y = vec[i]
        d = 2*c + (y>>bit & 1)
        bit_vec.append((c,d))

    base_c = []
    base_d = []
    for c,d in bit_vec:
        f_c,f_d = False,False

        for b in base_c:
            c = min(c,c^b)
        if c:
            f_c = True
            base_c.append(c)

        for b in base_d:
            d = min(d,d^b)
        if d:
            f_d = True
            base_d.append(d)

        if f_d:
            if not f_c:
                return -1

    base_d.sort()
    assert 1 not in base_d
    pos = 0
    res = [0 for i in range(N)]
    for d in base_d:
        n = d.bit_length()
        assert pos < n-1
        tmp = d & 1
        for i in range(pos):
            tmp ^= (d>>(i+1)) & res[i]
        #print(pos,n,tmp,res)
        for i in range(pos,n-1):
            if tmp and d>>(i+1) & 1:
                res[i] = 1
                tmp = 0
            else:
                res[i] = 0
        pos = n-1
    assert pos == N
    return res

ans = [0 for i in range(N)]
for bit in range(30):
    tmp = solve(bit)
    if tmp == - 1:
        exit(print(-1))
    else:
        for i in range(N):
            ans[i] += tmp[i]<<bit

print(*ans,sep="\n")

for c,y in vec:
    tmp = 0
    for i in range(N):
        if c>>i & 1:
            tmp ^= ans[i]
    #assert y==tmp