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 C# (judge verdict: Accepted)

using System;
class _11c{
    static void Main(){
        int[] n=Array.ConvertAll(Console.ReadLine().Split(),s=>int.Parse(s));
        Console.WriteLine("{0} {1}",n[0]*n[1],2*(n[0]+n[1]));
    }
}