Backpacking

input/t1.scala:2: error: ';' expected but '(' found.
import io.StdIn.readLine()
                        ^
one error found

import io.StdIn.readLine()



object W{
  def main(): Unit = {

  val ab = readLine().split(" ")

  println((ab(0).toInt)+ab(1).toInt)
  }
}