Problem:
Print a Rectangle

Draw a rectangle which has a height of H cm and a width of W cm. Draw a 1-cm square by single '#'.

Input

The input consists of multiple datasets. Each dataset consists of two integers H and W separated by a single space.

The input ends with two 0 (when both H and W are zero).

Output

For each dataset, print the rectangle made of H × W '#'.

Print a blank line after each dataset.

Constraints

1 ≤ H ≤ 300

1 ≤ W ≤ 300

Sample Input

3 4
5 6
2 2
0 0

Sample Output

####
####
####

######
######
######
######
######

##
##

Solution in C# (judge verdict: Accepted)

using System;
using System.Collections.Generic;

class Program
{
	static void Main(string[] args)
	{

        List<int> a = new List<int>();
        List<int> b = new List<int>();

        //long[] a = new long[n];


		//string[] s = Console.ReadLine().Split(' ');

		// int a = int.Parse(Console.ReadLine());

		
        while(true)
        {
            string[] s = Console.ReadLine().Split(' ');
            int c = int.Parse(s[0]);
            int d = int.Parse(s[1]);

            if (c == 0 && d == 0) break;

            a.Add(c);
            b.Add(d);

        }

        for (int i = 0; i < a.Count;i++)
        {
            for (int y = 0; y < a[i];y++)
            {
                for (int x = 0; x < b[i]; x++)
                {
                    Console.Write("#"); 
                }
                Console.WriteLine("");
            }
            Console.WriteLine("");
        }

		//Console.WriteLine("");


	}
}