func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     string s[4];     for (int i = 0; i < 4; i++) cin >> s[i];     int x = 0;     for (int i = 0; i < 3; i++) {       for (int j = 0; j < 3; j++) {         x = s[i][j] ==  # ;         x += s[i + 1][j] ==  # ;         x += s[i][j + 1] ==  # ;         x += s[i + 1][j + 1] ==  # ;         if (x != 2) return cout <<  YES , 0;       }     }     cout <<  NO ;     return 0;   }   