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)

MODE = "stdio"
require 'matrix'

tmp = Array.new

class Integer
  def divisor_list2
    return [1] if self == 1
    (1..Math.sqrt(self).to_i).select do |i|
      self%i == 0
    end.map {|e| [e, self/e]}.flatten.uniq.sort
  end
end

if(defined? MODE)
  tmp = STDIN.read.split("\n")
else
  iotmp = "\
  3 5
  ".split("\n")
  iotmp.each{|s|
    tmp << s.strip
  }
end

a,b = tmp[0].split(" ").map(&:to_i)


print a*b," ",2*a+2*b,"\n"