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;

public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int height = sc.nextInt();
        int width = sc.nextInt();
        while(width != 0 || height != 0){
            StringBuilder sb = new StringBuilder();
            for(int w = 0; w < width; w++){
                sb.append('#');
            }
            for(int h = 0; h < height; h++){
                System.out.println(sb.toString());
            }
            System.out.println();
            height = sc.nextInt();
            width = sc.nextInt();
        }
    }
}