متوازی الاضلاع

import java.util.Scanner;

public class Parallelogram {

	private static boolean flag=false;
	private static int breadth , height;
        static Scanner scanner = new Scanner(System.in);

        static{
            breadth=scanner.nextInt();

 
            height=scanner.nextInt();
            if(breadth<=0 || height<=0)
                flag=false;
            else
                flag=true;
            System.out.println(flag? "valid":"invalid");


}


	public static void main(String[] args) { //don't change main body
		if (flag) {
			int area = breadth * height;
			System.out.print(area);
		}
	}
}