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 Ruby (judge verdict: Accepted)

class RectangleCaliculator
  def calcArea(width, height)
    return width * height
  end
 
  def calcCircumference(width, height)
    return (width + height) * 2
  end
end
 
# 入力の横、縦の長さ取得
inputArray = gets.split(nil)
height = inputArray[0].to_i
width = inputArray[1].to_i
 
# 計算クラスを作成し、面積、周の長さを計算
rect = RectangleCaliculator.new
area = rect.calcArea(width, height)
circumference = rect.calcCircumference(width, height)
 
# 出力
puts area.to_s + " " + circumference.to_s