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 area(a, b)
	a * b
end

def perimeter(a, b)
	2 * (a + b)
end

a, b = gets.split.map {|i| i.to_i}
print area(a, b), " ", perimeter(a, b), "\n"