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;

public class ITP1_1_C
{
    public static void Main(string[] args)
    {
//        var exStdIn = new System.IO.StreamReader( "input.txt" );
//        System.Console.SetIn( exStdIn );

        string[] str = Console.ReadLine().Split(' ');

        var a = int.Parse(str[0]);
        var b = int.Parse(str[1]);

        var area = a * b;
        var perimeter = a * 2 + b * 2;

        Console.WriteLine("{0:d} {1:d}", area, perimeter);
    }
}