func_code_string: #include <bits/stdc++.h>   using namespace std;   int main(int argc, char **argv) {     int n, h;     cin >> n >> h;     bool flag;     for (int k = 0; k < n; k++) {       flag = false;       for (int j = 0; j < n; j++) {         if (flag) cout <<    ;         flag = true;         if (j == k)           cout << h;         else           cout <<  0 ;       }       cout << endl;     }     return 0;   }   