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

/**
  * Created by yusaku on 2017/02/15.
  */

object Main {
  def main(args: Array[String]): Unit = {
    val ab = StdIn.readLine().split(" ").map(_.toInt)
    println(s"${ab.product} ${ab.sum * 2}")
  }
}