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;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _1_5_a
{
    class Program
    {
        static void Main(string[] args)
        {
            while (true)
            {
                string[] str = new string[2];
                str = Console.ReadLine().Split(' ');

                int i = int.Parse(str[0]);
                int n = int.Parse(str[1]);
                if (i == 0 && n == 0 )
                {
                    break;
                }

                for (int a = 0; a < i; a++)
                {
                    for (int b = 0; b < n; b++)
                    {
                        Console.Write('#');
                    }
                    Console.Write("\n");
                }
                Console.Write("\n");
            }
        }
    }
}