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;

public class Main{
	public static void main(String[] args){
		Scanner scanNum = new Scanner(System.in);
	
	int a = scanNum.nextInt(); //???
	int b = scanNum.nextInt();//?¨?

	System.out.println(a * b);
	System.out.println(2*(a + b));
	}
}