#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
//const long nPrime = 1000000007;
//const long nPrime = 998244353;
typedef long long ll;
int main() {
    long t;
    cin >> t;
    while(t--){
        long h,w;
        cin >> h >> w;
        long h1 = ((h+1)/3)*3+1;
        long w1 = ((w+1)/3)*3+1;
        vector<vector<long>> vviAns(h1,vector<long>(w1,0));
        for(long i = 0; i < h1; i++){
            for(long j = 0; j < w1; j++){
                if(i%3 != 0){
                    vviAns[i][j]++;
                }
                if(j%3 != 0){
                    vviAns[i][j]++;
                }
            }
        }
        long hBeg = 0, hEnd = h1, wBeg = 0, wEnd = w1;
        
        if(h%3==0 || h%3==2){
            hEnd--;
        }
        if(h%3==2){
            hBeg++;
        }
        if(w%3==0 || w%3==2){
            wEnd--;
        }
        if(w%3==2){
            wBeg++;
        }

        for(long i = hBeg; i < hEnd; i++){
            for(long j = wBeg; j < wEnd; j++){
                cout << vviAns[i][j] << " ";
            }
            cout << endl;
        }
    }
    return 0;
}