import javax.swing.*;
import java.awt.*;
import java.util.*;

public class Shape {

    ArrayList<Integer> x = new ArrayList<Integer>();
    ArrayList<Integer> y = new ArrayList<Integer>();
    int len = 0;

    public Shape() {

    }

    public void addPoint(int posX, int posY) {
        x.add(posX);
        y.add(posY);
        len++;

    }

    public int getX(int index) {
        return x.get(index);
    }

    public int getY(int index) {
        return y.get(index);
    }

    public int getLength() {
        return len;
    }
}