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;

class Program
{
    static void Main()
    {
        int[] dts = null;
        string r = "";

        while(true)
        {
            // 0:H, 1:W
            dts = Console.ReadLine().Split(' ').Select(s => int.Parse(s)).ToArray();

            if (dts[0] == 0 && dts[1] == 0) break;

            for (int i = 0; i < dts[0]; i++)
            {
                r = "";

                for (int j = 0; j < dts[1]; j++)
                {
                    r += "#";
                }

                Console.WriteLine(r);    
            }

            Console.WriteLine("");
        }
    }
}