ACM488

import java.io.BufferedInputStream;
import java.io.IOException;
import java.util.Scanner;

class Main  
{  
    public static void main(String args[]) throws IOException  
    {  
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        int input,wave,times;

        input = cin.nextInt();
        while(input>0)
        {
            wave = cin.nextInt();
            times = cin.nextInt();   
            while(times>0)
            {
                int a;
                for(a=1;a<=wave;a++){
                    for(int b=1;b<=a;b++){
                        System.out.print(b);
                    }
                    System.out.println();
                }
                for(a=a-2;a>0;a--){
                    for(int b=a;b>0;b--){
                        System.out.print(b);
                    }
                    System.out.println();
                }
                times--;
                if(times>0)
                    System.out.println();
            }
            input--;
            if(input>0)
                System.out.println();
        }
    }
}