func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     for (int ii = 0; ii < t; ii++) {       int n;       cin >> n;       bool A[52];       char Aa[52][52];       for (int i = 0; i < n; i++) {         char t;         cin >> t;         if (t ==  1 )           A[i] = 0;         else           A[i] = 1;       }       int k = 0;       int t = -1;       for (int i = n - 1; i >= 0; i--) {         if (A[i] == 0) {           k++;         } else {           t = i;         }       }       if (n - k > 2 || n - k == 0)         cout <<  YES  << endl;       else {         cout <<  NO  << endl;         continue;       }       for (int i = 0; i < n; i++) {         for (int j = 0; j < n; j++) {           Aa[i][j] =  = ;         }       }       for (int i = 0; i < n; i++) Aa[i][i] =  X ;       int c1 = t;       if (n - k > 2) {         for (int i = t + 1; i < n; i++) {           if (A[i] == 1) {             Aa[c1][i] =  + ;             Aa[i][c1] =  - ;             c1 = i;           }         }         Aa[c1][t] =  + ;         Aa[t][c1] =  - ;       }       for (int i = 0; i < n; i++) {         for (int j = 0; j < n; j++) {           cout << Aa[i][j];         }         cout << endl;       }     }     return 0;   }   