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

using ll = long long;
using VI = vector<int>;
using P = pair<int, int>;

#define REP(i, n) for (int i = 0; i < (int)(n); i++)
#define FOR(i, a, b) for (ll i = a; i < (ll)(b); i++)
#define ALL(a) (a).begin(),(a).end()

constexpr int INF = 1001001001;
constexpr ll LINF = 1001001001001001001ll;
constexpr int DX[] = {1, 0, -1, 0};
constexpr int DY[] = {0, 1, 0, -1};

template< typename T1, typename T2>
inline bool chmax(T1 &a, T2 b) {return a < b && (a = b, true); }
template< typename T1, typename T2>
inline bool chmin(T1 &a, T2 b) {return a > b && (a = b, true); }

const ll MOD = 1000000007;

int main() {
    int T;
    cin >> T;
    while (T-- > 0) {
        int H, W, x = 0, y = 0;
        cin >> H >> W;
        if (H % 3 == 2) x = 1;
        if (W % 3 == 2) y = 1;
        REP(i, H) {
            REP(j, W) {
                cout << ((i + x) % 3 != 0) + ((j + y) % 3 != 0);
                if (j < W - 1) cout << " ";
            }
            cout << endl;
        }
    }
}