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);
        List<Integer> A = new ArrayList<>();
        List<Integer> B = new ArrayList<>();
        int t = 0;
        while(true){
            A.add(sc.nextInt());
            B.add(sc.nextInt());
            if(A.get(A.size()-1) == 0) break;
            if(B.get(A.size()-1) == 0) break;
            t++;
        }
        for(int n=0;n<t;n++){
            for(int i=0; i < A.get(n); i++){
                for(int j=0; j < B.get(n); j++){
                    System.out.print("#");
                }
                System.out.print("\n");
            }
            System.out.print("\n");
        }
        sc.close();
    }
}