#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  cout << "YES\n";
  for (int i = 1; i <= n; i++) {
    int x1, x2, y1, y2;
    cin >> x1 >> y1 >> x2 >> y2;
    cout << (2 * ((x1 % 2 + 2) % 2) + (y1 % 2 + 2) % 2) + 1 << "\n";
  }
}
