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;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
           int a, b;
           string[] str = Console.ReadLine().Split(' ');
           a = int.Parse(str[0]);
           b = int.Parse(str[1]);
           Console.WriteLine(a*b + " " + 2*(a+b));
           
        }
    }
}