func_code_string: #include <bits/stdc++.h>   using namespace std;   long long power(long long x, long long y, long long m) {     long long r = 1;     for (; y; y >>= 1) {       if (y & 1) r = r * x % m;       x = x * x % m;     }     return r;   }   const long long N = 105, M = 105;   long long a[N][M];   int run_test() {     long long n, m;     cin >> n >> m;     for (long long i = 0; i < n; i++)       for (long long j = 0; j < m; j++) cin >> a[i][j];     for (long long i = 0; i < n; i++)       for (long long j = 0; j < m; j++) {         if (a[i][j] % 2 != (i + j) % 2) a[i][j]++;       }     for (long long i = 0; i < n; i++) {       for (long long j = 0; j < m; j++) cout << a[i][j] <<    ;       cout <<   n ;     }     return 0;   }   int main() {     ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);     srand(time(NULL));     ;     long long t;     t = 1;     cin >> t;     while (t--) {       run_test();     }   }   