Problem:
Rectangle

Write a program which calculates the area and perimeter of a given rectangle.

Input

The length a and breadth b of the rectangle are given in a line separated by a single space.

Output

Print the area and perimeter of the rectangle in a line. The two integers should be separated by a single space.

Constraints

1 ≤ a, b ≤ 100

Sample Input 1

3 5

Sample Output 1

15 16

Solution in Scala (judge verdict: Accepted)

import scala.io.StdIn.readLine

object Main extends App {
  val num = readLine.split(" ").map(_.toInt)
  val (x, y) = (num(0), num(1))
  val area = x * y
  val perimeter = (x + y) * 2

  println(s"$area $perimeter")
}