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 JAVA (judge verdict: Accepted)

import java.util.Scanner;
import java.util.Arrays;

class Main{
	public static void main(String[] args){
		Scanner scanner = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		
		while(true){
			int h = scanner.nextInt();
			int w = scanner.nextInt();
			
			if(h == 0 && w == 0){
				break;
			}

			for(int i = 0; i < h; i++){
				for(int j = 0; j < w; j++){
					sb.append("#");
				}
				sb.append("\n");
			}
			sb.append("\n");
		}
		System.out.print(sb);
	}
}