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 Rectangle {
    
    static void Main(){
        
        string[] str = Console.ReadLine().Split(' '); 
        // ''?????§?????????????????????????????°???????????£??????????????????str?????????????´??????????
        var a = int.Parse(str[0]);
        var b = int.Parse(str[1]);

        int area = a * b;
        int circuit = (2 * a) + (2 * b) ;
        Console.WriteLine(area + " " + circuit);
    }
    
}