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)

instr = gets.split(" ")
num_a = instr[0].to_i
num_b = instr[1].to_i

area = num_a * num_b
length = (num_a * 2) + (num_b * 2)

puts "#{area} #{length}"