#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
  int n;
  cin >> n;
  cout << "YES\n";
  for (int i = 0; i < n; i++) {
    int x, y;
    cin >> x >> y >> x >> y;
    cout << 2 * (x & 1) + (y & 1) + 1 << '\n';
  }
}
