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;

    class Program
    {
        static void Main(string[] args)
        {
            string[] strInputArray;
            List<int> inputList = new List<int>();
            string output = "";
            do
            {
                strInputArray = Console.ReadLine().Split(' ');
                if (!strInputArray[0].Equals("0") && !strInputArray[1].Equals("0"))
                {
                    inputList.Add(int.Parse(strInputArray[0]));
                    inputList.Add(int.Parse(strInputArray[1]));
                }
            } while (!strInputArray[0].Equals("0") && !strInputArray[1].Equals("0"));

            for (int i = 1; i <= (inputList.Count / 2); i++)
            {
                output = "";

                for (int n = 1; n <= inputList[(i * 2) - 1]; n++)
                {
                    output = output + '#';
                }
                for (int m = 1; m <= inputList[(i * 2) - 2]; m++)
                {
                    Console.WriteLine(output);
                }
                Console.WriteLine();
            }

            Console.ReadLine();
        }
    }