import scala.math._

object Main {
  def main(args: Array[String]): Unit = {
    val sc = new java.util.Scanner(System.in)

    val a = sc.nextInt
    val op = sc.nextString
    val b = sc.nextInt

    op match {
      case "+" =>
        println(a+b)
      case "-" =>
        println(a-b)
      case "*" =>
        println(a*b)
      case "/" =>
        println(a/b)
    }
  }
}