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 Scala (judge verdict: Accepted)

import scala.io.StdIn

object Main {
  def main(args: Array[String]): Unit = {
    val inputs = Iterator.continually(StdIn.readLine()).takeWhile(_ != null)
    for{
      in <- inputs
      val Array(h, w, _*) = in.split(" ").map(_.toInt)
      }{
        if(h != 0 && w != 0){
          println((List.tabulate(h, w){(i, j) =>
            if(j == w-1) "#\n" else "#"
          }).flatten.mkString)
        }
      }
  }
}