func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     scanf( %d , &t);     for (int tt = 0; tt < t; tt++) {       vector<vector<int> > A(9, vector<int>(9));       for (int i = 0; i < 9; i++) {         int q;         scanf( %d , &q);         for (int j = 0; j < 9; j++) {           A[i][8 - j] = q % 10;           q /= 10;         }       }       A[0][0] = A[0][1];       A[1][3] = A[0][3];       A[2][6] = A[0][6];       A[3][1] = A[3][0];       A[4][4] = A[3][4];       A[5][7] = A[4][7];       A[6][2] = A[6][1];       A[7][5] = A[8][5];       A[8][8] = A[7][7];       for (int i = 0; i < 9; i++) {         for (int j = 0; j < 9; j++) printf( %d , A[i][j]);         printf(  n );       }     }     return 0;   }   