package rectangle;
import java.util.*;

public class RectangleTest {
  public static void main(String[] args) {
    Rectangle rectangle1 = null;
    Scanner scan = new Scanner(System.in);
    double length1 = scan.nextDouble();
    double width1 = scan.nextDouble();
    rectangle1 = new Rectangle(length1, width1);
    double area1 = rectangle1.area();
    System.out.println("area = " + area1);
    double perimeter1 = rectangle1.perimeter();
    System.out.println("perimeter = " + perimeter1);
    System.out.println("length = " +
                       rectangle1.getLength());
    Rectangle rectangle2 = rectangle1;
    rectangle2.setLength(1.2345);
    System.out.println("length = " +
                       rectangle1.getLength());
    System.out.println(rectangle1);
  }
}