mod = 998244353


def main():
    import sys
    input = sys.stdin.readline

    N, M = map(int, input().split())
    ans = [1] * N
    ok = 1

    for _ in range(M):
        p, q, a, b = map(int, input().split())
        if a <= 0 or b <= 0:
            ok = 0
    if ok:
        print(*ans)
    else:
        print(-1)


if __name__ == '__main__':
    main()