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 s = new Scanner(System.in);
		int a = s.nextInt();
		int b = s.nextInt();
		int area = area(a,b);
		int lenght = length(a,b);
		System.out.println(area + "???" + lenght);
	}

	//??¢???????±???????????????????
	public static int area(int a, int b){
		int ans;
		ans = a * b;
		return ans;
	}
	//??¨?????????????±???????????????????
	public static int length(int a, int b){
		int ans = 0;
		ans += a;
		ans += a;
		ans += b;
		ans += b;
		return ans;
	}
}