func_code_string: #include <bits/stdc++.h>   using namespace std;   int a[100][100];   int main() {     string x;     int n;     cin >> n;     for (int i = 0; i < n; i++) {       cin >> x;       for (int j = 0; j < n; j++) {         if (x[j] ==  E ) a[i][j] = 1;       }     }     int k = 0;     int s;     for (int i = 0; i < n; i++) {       s = 1;       for (int j = 0; j < n; j++) s *= a[i][j];       k += (1 - s);     }     if (k == n) {       for (int i = 0; i < n; i++)         for (int j = 0; j < n; j++)           if (a[i][j] == 0) {             cout << i + 1 <<     << j + 1 << endl;             break;           }       return 0;     }     k = 0;     for (int i = 0; i < n; i++) {       s = 1;       for (int j = 0; j < n; j++) s *= a[j][i];       k += (1 - s);     }     if (k == n) {       for (int i = 0; i < n; i++)         for (int j = 0; j < n; j++)           if (a[j][i] == 0) {             cout << j + 1 <<     << i + 1 << endl;             break;           }       return 0;     }     cout << -1;     return 0;   }   