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.Collections.Generic;
using System.Linq;

public class program{
    public static void Main(){
        var ab = Console.ReadLine().Split(' ').Select(s => int.Parse(s)).ToArray();
        var a = ab[0];
        var b = ab[1];
        Console.WriteLine("{0} {1}", a*b, 2*(a+b));
    }
}