func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 100 + 10;   char s[maxn][maxn];   int main() {     int a, b;     for (int i = 0; i < 11; i++) gets(s[i]);     scanf( %d%d , &a, &b);     int r = (a - 1) % 3, c = (b - 1) % 3;     int flag = 0;     for (int i = r * 3 + r; i < (r + 1) * 3 + r; i++) {       for (int j = c * 3 + c; j < (c + 1) * 3 + c; j++) {         if (s[i][j] ==  . ) {           flag = 1;           break;         }       }     }     if (flag) {       for (int i = r * 3 + r; i < (r + 1) * 3 + r; i++) {         for (int j = c * 4; j < c * 4 + 3; j++) {           if (s[i][j] ==  . ) s[i][j] =  ! ;         }       }       for (int i = 0; i < 11; i++) printf( %s n , s[i]);     } else {       for (int i = 0; i < 11; i++) {         for (int j = 0; j < 11; j++)           if (s[i][j] ==  . ) s[i][j] =  ! ;       }       for (int i = 0; i < 11; i++) printf( %s n , s[i]);     }     return 0;   }   