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)

def range(data)
  a = data >= 1
  b = data <= 100
  return (a and b)
end

input = gets
data = input.split(" ")
a = data[0].to_i
b = data[1].to_i

if range(a) and range(b) then
  puts "#{a * b} #{a * 2 + b * 2}"
end