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;

class Program
{
    static void Main(string[] args)
    {
        var input = Console.ReadLine();
        var str = input.Split(' ');
        var ans1 = int.Parse(str[0]) * int.Parse(str[1]);           // ??¢???
        var ans2 = (int.Parse(str[0]) + int.Parse(str[1])) * 2;     // ??¨?????????
        Console.WriteLine(ans1 + " " + ans2);
    }
}