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)

object Main extends App {
  val sc = new java.util.Scanner(System.in)
  val a, b = sc.nextInt()
  println(calcArea(a, b) + " " + calcCircumference(a, b))

  def calcArea(a: Int, b: Int): Int = a * b
  def calcCircumference(a: Int, b: Int): Int = a * 2 + b * 2
}