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: Accepted)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String line;
		try {
			line = br.readLine();
		} catch (IOException e) {
			System.err.println("The input is missing. " + e.getMessage());
			return;
		}

        int x, y;
        try {
        	String[] fields = line.split(" ");
        	x = Integer.parseInt(fields[0]);
        	y = Integer.parseInt(fields[1]);
        } catch(Throwable e) {
			System.err.println("The input is in an illegal form. " + line);
			return;
        }

        StringBuilder b = new StringBuilder();
        b.append(x*y);
        b.append(' ');
        b.append(2*(x+y));
        System.out.println(b.toString());
    }
}