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;
using System.Linq;
public class Test{
    public static void Main(){
        var xs = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToList();
        Console.WriteLine((xs[0] * xs[1]).ToString() + " " + (xs[0] * 2 + xs[1] * 2).ToString());
    }
}