#include <bits/stdc++.h>
using namespace std;
int main(){
  int N, M;
  cin >> N >> M;
  bool ok = true;
  for (int i = 0; i < M; i++){
    int p, q, a, b;
    cin >> p >> q >> a >> b;
    if (a != 1 && b != 1){
      ok = false;
    }
  }
  if (!ok){
    cout << -1 << endl;
  } else {
    for (int i = 0; i < N; i++){
      cout << 1;
      if (i < N - 1){
        cout << ' ';
      }
    }
    cout << endl;
  }
}