import java.util.Scanner;

class Rectangle {

    private double length;
    private double width;

    public Rectangle() {
    }

    public Rectangle(double length, double width) {
        this.length = length;
        this.width = width;
    }

    public double getLength() {
        return length;
    }

    public void setLength(double length) {
        this.length = length;
    }

    public double getWidth() {
        return width;
    }

    public void setWidth(double width) {
        this.width = width;
    }

    public double getPerimeter() {
        return (length + width) * 2;
    }

    public double getArea() {
        return length * width;
    }

    public boolean isSquare() {
        return length == width;
    }
}

public class Solution1 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Length: ");
        double l = Double.parseDouble(sc.nextLine());
        System.out.print("Width: ");
        double w = Double.parseDouble(sc.nextLine());
        Rectangle rectangle = new Rectangle(l, w);
        System.out.println("Perimeter: " + rectangle.getPerimeter());
        System.out.println("Area: " + rectangle.getArea());

        System.out.println(rectangle.isSquare() == true ? "This is a square" : "Not a square");
    }
}