// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes.by_ref().map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr,) => {};
    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) };
    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };
    ($next:expr, usize1) => (read_value!($next, usize) - 1);
    ($next:expr, [ $t:tt ]) => {{
        let len = read_value!($next, usize);
        read_value!($next, [$t; len])
    }};
    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
}

// Tags: linear-algebra, gaussian-elimination
fn main() {
    input! {
        n: usize, m: usize,
        by: [([usize1], i64); m],
    }
    let mut basis = vec![];
    for (b, mut y) in by {
        let mut c = 0i64;
        for &b in &b {
            c |= 1 << b;
        }
        for &(p, q) in &basis {
            if (c ^ p) < c {
                c ^= p;
                y ^= q;
            }
        }
        if c == 0 && y != 0 {
            println!("-1");
            return;
        }
        if c != 0 {
            basis.push((c, y));
        }
    }
    basis.sort();
    let mut x = vec![0; n];
    for (p, mut q) in basis {
        let mut hi = 0;
        for i in 0..n {
            if (p & 1 << i) != 0 {
                hi = i;
            }
        }
        for i in 0..hi {
            if (p & 1 << i) != 0 {
                q ^= x[i];
            }
        }
        x[hi] = q;
    }
    for i in 0..n {
        println!("{}", x[i]);
    }
}