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)

#!/usr/bin/env ruby
n = gets.split(' ').map(&:to_i)
a = n[0] * n[1]
b = n[0]*2 + n[1]*2

printf "%d %d\n", a, b