object Main {
  def main(args: Array[String]): Unit = {
    val factors = io.StdIn.readLine.split(" ").map{_.toInt}
    if( factors( 0 )%factors( 1 ) == 0 ) println( factors( 0 )/factors( 1 ) )
    else                                 println( factors( 0 )/factors( 1 ) + 1 )
  }
}