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 Program
{
    static void Main()
    {
        string[] s = Console.ReadLine().Split(' ');
        int a = int.Parse(s[0]);
        int b = int.Parse(s[1]);

        int[] ret = new int[2];
        ret[0] = a * b;
        ret[1] = (a + a) + (b + b);

        Console.WriteLine(string.Format("{0} {1}", ret[0], ret[1]));
    }
}