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.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    boolean flg = true;
    ArrayList<List<Integer>> list = new ArrayList<>();
    while(flg) {
      int h = sc.nextInt();
      int w = sc.nextInt();

      if(h == 0 && w == 0) {
        flg = false;
        sc.close();
        break;
      }
      List<Integer> data = new ArrayList<Integer>();
      data.add(h);
      data.add(w);
      list.add(data);

    }

    for(int i = 0; i < list.size(); i++) {
      int h = list.get(i).get(0);
      int w = list.get(i).get(1);
      for(int j = 0; j < h; j++) {
        for(int k = 0; k < w; k++) {
          System.out.print('#');
        }
        System.out.print('\n');
      }
        System.out.print('\n');
    }
  }
}