#include <bits/stdc++.h>
using namespace std;
using ll = long long;

vector<int> calc(int n) {
  if (n == 1) {
    return {0};
  }
  
  vector<int> res;
  
  if (n % 3 != 2) res.push_back(0);
  
  int t = (n + 1) / 3;
  for (int i = 0; i < t; i++) {
    res.push_back(1);
    res.push_back(1);
    if (i != t - 1) res.push_back(0);
  }
  if (n % 3 == 1) res.push_back(0);
  
  return res;
}

int main() {
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);
  
  int T;
  cin >> T;
  
  for (;T--;) {
    int H, W;
    cin >> H >> W;
    
    vector<int> row = calc(H);
    vector<int> col = calc(W);
    
    for (int i = 0; i < H; i++) {
      for (int j = 0; j < W; j++) cout << row[i] + col[j] << (j == W - 1 ? '\n' : ' ');
    }
  }
}