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)

if __FILE__ == $0
  while line = STDIN.gets
    tokens = line.chomp!.split.map!(&:to_i)
    a, b = tokens[0], tokens[1]
    puts "#{a*b} #{(a+b)*2}"
  end
end