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);
        while(true) {
            int h = sc.nextInt();
            int w = sc.nextInt();

            if(h == 0 && w == 0) {
                break;
            }

            StringBuilder sb = new StringBuilder();

            for(int i=0; i<w; i++) {
                sb.append("#");
            }

            for(int i=0; i<h; i++) {
                System.out.println(sb);
            }

            System.out.println("");
        }
        sc.close();
    }
}