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;

class Program {
    static void Main() {
        int[] n = Console.ReadLine().Split().Select(int.Parse).ToArray();
        int a = n[0];
        int b = n[1];
        Console.WriteLine("{0} {1}", a * b, 2 * (a + b));
    }
}