import scala.io.StdIn

object Main{
  def main(args:Array[String]) {
    val input = StdIn.readLine()
    val x = input.toInt
    println(pow(x, 3))
  }
  def pow(x:Int, y:Int) = {
    val list = List.fill(y)(x)
    list.reduceLeft{(x1, x2)=>x1*x2}
  }
}