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);
        StringBuilder Newbuilt = new StringBuilder(); //????????????????????????????????????????????????
      //H??¨W?????\?????????????????????????????§???  
        while (true) {
            String[] array = sc.nextLine().split(" ");
            int H = Integer.parseInt(array[0]);
            int W = Integer.parseInt(array[1]);
            if (H == 0 && W == 0) break ;
      //????????¢?????¢???????¨???????????????¶ HxW
            for (int i = 0; i < H; i++) {
                for (int j = 0; j < W; j++) {
                    Newbuilt.append("#");
                }
                Newbuilt.append("\n");
            }
            Newbuilt.append("\n");
             
        }
       //StringBuilder?????????????????????????????????????????????????????????
        System.out.print(Newbuilt);
        
        sc.close();
    }
}