func_code_string: #include <bits/stdc++.h>   using namespace std;   const int xi[] = {1, 1, 1, 0, 0, -1, -1, -1};   const int yi[] = {-1, 0, 1, -1, 1, -1, 0, 1};   int main() {     int m, n;     cin >> m >> n;     char g[m][n];     for (int i = 0; i < m; i++)       for (int j = 0; j < n; j++) cin >> g[i][j];     int u, v;     for (int i = 0; i < m; i++) {       for (int j = 0; j < n; j++) {         if (g[i][j] ==  * ) continue;         int cnt = 0;         for (int k = 0; k < 8; k++) {           u = i + xi[k];           v = j + yi[k];           if (u >= 0 && u < m && v >= 0 && v < n && g[u][v] ==  * ) cnt++;         }         if (g[i][j] ==  . ) {           if (cnt != 0) {             cout <<  NO n ;             return 0;           }         } else {           if (g[i][j] -  0  != cnt) {             cout <<  NO n ;             return 0;           }         }       }     }     cout <<  YES n ;     return 0;   }   