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.readLine

object Main {
  def main(args: Array[String]) {
    def printRectangle: Unit = {
      val Array(a, b) = readLine().split(" ").map(_.toInt)
      if(a != 0 || b != 0) {
        for(i <- 0 until a) {
          println("#" * b)
        }

        println()
        printRectangle
      }
    }

    printRectangle
  }
}