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.NoSuchElementException;
import java.util.Scanner;
import java.util.stream.Stream;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        try {
            int[] a_b = Stream.of(sc.nextLine().split(" "))
                    .map(Integer::parseInt)
                    .mapToInt(Integer::intValue)
                    .toArray();
            if (a_b.length != 2) {
                System.out.println("Numbers of args not match.");
            }
            System.out.println((a_b[0] * a_b[1]) * 2);
        } catch (NoSuchElementException | NumberFormatException e) {
            System.out.println(e);
        }
    }
}