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 JAVA (judge verdict: Wrong Answer)

import java.util.Scanner;

class Main{
	public static void main (String[ ] args){
	    Scanner scan = new Scanner(System.in);
	    double a = scan.nextDouble();
        double b = scan.nextDouble();
        System.out.println(a*b+" "+(2*a+2*b));
	}
}