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;

class P
{
public static void Main()
{
 bool z = true;

            while (z)
            {
                //????????????????????????
                var WH = Console.ReadLine().Split(' ');
                int H = Int32.Parse(WH[0]);
                int W = Int32.Parse(WH[1]);

                if (!(W == 0 & H == 0))
                {
                    for (int h = 1; h <= H; h++)
                    {
                        for (int w = 1; w <= W; w++)
                        {
                            if (w != W)
                            {
                                Console.Write("#");
                            }
                            else if (w == W & h == H)
                            {
                                Console.Write("#\n\n");
                            }
                            else
                            {
                                Console.Write("#\n");
                            }
                        }
                    }
                }
                else
                {
                    z = false;
                    break;
                }
 
            }
}
}