import scala.io.StdIn._

object Main extends App {

  val x = readInt()

  def solve() = {
    if(x >= 1800) 1
    else if(x >= 1600) 2
    else if(x >= 1400) 3
    else if(x >= 1200) 4
    else if(x >= 1000) 5
    else if(x >= 800) 6
    else if(x >= 600) 7
    else 8
  }


  println(solve())

}

