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: WA: Presentation Error)

import java.io.IOException;
import java.util.Scanner;
public class Main {

	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		StringBuilder out = new StringBuilder();
		StringBuilder sum = new StringBuilder();
		
		while(true){
		int H = sc.nextInt();
		int W = sc.nextInt();
		
		if(H + W <= 0)break;
		
		for(int i = 0;i < H;i++){
			for(int j = 0;j < W;j++){
				out = out.append("#");
			}
			out = out.append("\n");
		}
		sum = sum.append(out + "\n");
		out.delete(0,out.length());
		}
		System.out.println(sum);
		sc.close();
	}

}