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)

while str = STDIN.gets
  n = str.split(" ")
  a1 = n[0].to_i
  a2 = n[1].to_i
  area = a1*a2
  length = a1*2 + a2*2
  puts "#{area} #{length}"
end