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.*;

public class Main{
	public static void main(String[] args){
		String input = new Scanner(System.in).nextLine();
		String[] num = input.split("\\s");
		double area = Integer.parseInt(num[0]) * Integer.parseInt(num[1]) / 2;
		int length = (Integer.parseInt(num[0]) + Integer.parseInt(num[1])) * 2;
		System.out.println(area + "\\s" + length);
	}
}