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;

public class Hello
{
    public static void Main()
    {
        string s;
        int H;
        int W;
        string[] str;
        string outputRow = string.Empty;

        while((s = Console.ReadLine() ) != null)
        {
            str = s.Split(' ');
            H = int.Parse(str[0]);
            W = int.Parse(str[1]);

            if (H == 0 || W == 0) break;

            for(int i = 0; i < W; i++)
            {
                outputRow += "#";
            }
            for(int i = 0; i < H; i++)
            {
                Console.WriteLine(outputRow);
            }
            Console.WriteLine();
            outputRow = string.Empty;
        }
    }
}