import java.util.*;
import java.io.*;

public class Main {
    
    public static Scanner sc = new Scanner(System.in);
    public static PrintWriter pw = new PrintWriter(System.out);
    
    public static void main(String[] args) {
        
        int t = sc.nextInt();
        while( t > 0 ) {
            solve();
            t--;
        }
        
        pw.flush();
        
    }
    
    static void solve() {
        
        int H = sc.nextInt();
        int W = sc.nextInt();
        if( H == 1 ) {
            int[] g = {1,1,0};
            int id = W%3 == 1 ? 2 : 0;
            for( int i = 0; i < W; i++ ) {
                pw.print(g[(id+i)%3]+" ");
            }
            pw.println();
        }else if( W == 1 ) {
            int[] g = {1,1,0};
            int id = H%3 == 1 ? 2 : 0;
            for( int i = 0; i < H; i++ ) {
                pw.println(g[(id+i)%3]);
            }
        }else {
            int[][] g = {
                {2,2,1},
                {2,2,1},
                {1,1,0}
            };
            int idi = H%3 == 1 ? 2 : 0;
            int idj = W%3 == 1 ? 2 : 0;
            for( int i = 0; i < H; i++ ) {
                for( int j = 0; j < W; j++ ) {
                    pw.print(g[(idi+i)%3][(idj+j)%3]+" ");
                }
                pw.println();
            }
        }
        
        pw.println();
        
    }
    
}