func_code_string: #include <bits/stdc++.h>   using namespace std;   int a[60][60];   bool check[60];   int main() {     int n, x;     cin >> n;     for (int i = 0; i < n; i++)       for (int j = 0; j < n; j++) cin >> a[i][j];     for (int i = 0; i < n; i++) {       int t = 0;       for (int j = 0; j < n; j++) check[a[i][j]] = true;       for (int j = 1; j <= n; j++)         if (check[j] == true) t++;       if (t == n - 1) {         x = i;         break;       }     }     for (int i = 0; i < n; i++) {       if (a[x][i] == 0)         cout << n <<    ;       else         cout << a[x][i] <<    ;     }     cout << endl;     return 0;   }   