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;

class Main {
  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int H, W;
    
    while (true) {
      StringBuilder s = new StringBuilder();
      String crlf = System.getProperty("line.separator");
      H = in.nextInt();
      W = in.nextInt();
      if(H == 0 && W == 0) break;
      
      for (int w = 0; w < W; w++) {
        s.append("#");
      }
      for (int h = 0; h < H; h++) {
        System.out.println(s);
      }
      System.out.print(crlf);
    }
  }
}