func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAX = 1e5 + 10;   int mapp[110][110];   int b[110][110];   int main() {     int Cas = 1;     scanf( %d , &Cas);     while (Cas--) {       int n, m;       scanf( %d%d , &n, &m);       memset(mapp, 0, sizeof(mapp));       for (int i = 1; i <= n; i++)         for (int j = 1; j <= m; j++) {           scanf( %d , &mapp[i][j]);           int flag = (i + j) % 2;           if (mapp[i][j] % 2 == flag)             b[i][j] = mapp[i][j];           else             b[i][j] = mapp[i][j] + 1;         }       for (int i = 1; i <= n; i++)         for (int j = 1; j <= m; j++) printf( %d%c , b[i][j], j == m ?   n  :    );     }     return 0;   }   