func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int arr[100][100] = {0};     int n, x;     cin >> n >> x;     for (int i = 0; i < n; i++) {       arr[i][i] = x;     }     for (int i = 0; i < n; i++) {       for (int j = 0; j < n; j++) {         cout << arr[i][j] <<    ;       }       cout << endl;     }     return 0;   }   