#include <bits/stdc++.h>
using namespace std;
template <class T>
bool chmax(T &a, const T &b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
bool chmin(T &a, const T &b) {
  if (b < a) {
    a = b;
    return 1;
  }
  return 0;
}
const long long INF = 1LL << 60;
const int inf = (1 << 30) - 1;
const int mod = 1e9 + 7;
int dx[8] = {1, 0, -1, 0, -1, -1, 1, 1};
int dy[8] = {0, 1, 0, -1, -1, 1, -1, 1};
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int T;
  cin >> T;
  while (T--) {
    int n, m;
    cin >> n >> m;
    for (int i = 0; i < (n); ++i) {
      for (int j = 0; j < (m); ++j) {
        int a;
        cin >> a;
        cout << a + ((i + j) % 2 == a % 2 ? 0 : 1) << " ";
      }
      cout << endl;
    }
  }
}
