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{
  override def main(args: Array[String]) : Unit = {
    val scanner = new java.util.Scanner(System.in)
    
    val a,b = scanner.nextInt

    val (area,round) = solve(a,b)
    println(area + " "+round)
  }
  
  def solve(a: Int , b : Int) :(Int, Int) = {
    val x = area(a,b)
    val y = round(a,b)
    (x,y)
  }

  def area(a:Int, b:Int) : Int = {
    a*b
  }

  def round(a:Int, b:Int) : Int = {
    a*2 + b*2
  }
}