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.Linq;
using System.Text;

namespace ITP1_5_A
{
    class Program
    {
        static void Main(string[] args)
        {
            var sb = new StringBuilder();
            while (true)
            {
                var input = Console.ReadLine().Split(' ');
                if (input.All(s => s == "0"))
                    break;
                var H = int.Parse(input[0]);
                var W = int.Parse(input[1]);
                for(int i = 0; i < H; i++)
                {
                    sb.AppendLine(new string('#', W));
                }
                sb.AppendLine();
            }
            Console.Write(sb);
        }
    }
}