//ข้อสอบOOPเรื่องการสืบทอด by อามมี่หัวเสีย
import java.util.ArrayList;

public class Shape {
    private String name;
    public Shape (String name)
    {
        this.name = name;
    }
    public String getName() {
        return name;
    }
    public double getArea(){
        return 0;
    }
}

class Rectangular extends Shape {

     double Width;
     double Height;
     double Rec;

    public Rectangular(double Width, double Height,String name) {
        super(name);
        this.Width = Width;
        this.Height = Height;
        Rec=this.Width*Height;
    }

     @Override
   public double getArea()
   {
       return  Rec;
   }


}
class Circle extends Shape
{
    double r;
    double Rec;

    public Circle(double r,String name) {
        super(name);
        this.r = r;
        this.Rec = r*r*Math.PI;
    }
    public double getArea()
   {
       return  Rec;
   }



}

class Main1
{
    public static void main(String[] args) {
        ArrayList<Shape> A=new ArrayList<Shape>();

        A.add(new Rectangular(5,10,"A"));
        A.add(new Circle(3,"B"));
        A.add(new Circle(4,"C"));
        System.out.println(findBiggest(A).getName());




    }
    public static Shape findBiggest(ArrayList<Shape>  S)
    {
        double max = S.get(0).getArea();
        int temp = 0;
        for (int i = 0; i < S.size(); i++) {
            if(max < S.get(i).getArea() )
            {
                max = S.get(i).getArea();
                temp=i;
            }
        }
        return S.get(temp);
    }
}