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)

user_input = gets.chomp
a, b = user_input.split
a = a.to_i
b = b.to_i

area = a * b
perimeter = a * 2 + b * 2
puts "#{area} #{perimeter}"