using System;

public class Program

{

    static void range(int low, int high){

        int i, j = 0;

        for(i = low; i <= high; i++){

            for(j = 0; j < i; j++)

                Console.Write("{0} ", i);

            Console.WriteLine();

        }

    }

    public static void Main()

    {

        int a, b;

        Console.Write("A = ");

        a = Convert.ToInt32(Console.ReadLine());

        Console.Write("\nB = ");

        b = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine();

        if(a < b)

            range(a,b);

        else

            range(b,a);

    }

}