#include <bits/stdc++.h>
using namespace std;
const long long N = 1e5 + 5, mod = 1e9 + 7, mod1 = 998244353, mod2 = 1e9 + 9,
                inf = 1e18 + 7;
const long long infll = 1e18 + 7;
long long n;
signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  cin >> n;
  cout << "YES" << '\n';
  for (long long i = 1; i <= n; i++) {
    long long x, y;
    cin >> x >> y >> x >> y;
    cout << 1 + 2 * (x & 1) + (y & 1) << '\n';
  }
}
