func_code_string: #include <bits/stdc++.h>   using namespace std;   struct Rectangle {     int l, d, r, u;   };   const int maxn = 500000;   int n;   Rectangle rt[maxn];   int ans[maxn];   int main() {     ios::sync_with_stdio(false);     cin >> n;     for (int i = 0; i < n; i++) cin >> rt[i].l >> rt[i].d >> rt[i].r >> rt[i].u;     for (int i = 0; i < n; i++) ans[i] = (rt[i].l & 1) * 2 + (rt[i].d & 1);     cout <<  YES  << endl;     for (int i = 0; i < n; i++) cout << ans[i] + 1 << endl;     return 0;   }   