#include<iostream>
using namespace std;


class Point
{
public:
	void setXY(int x, int y)
	{
		m_x = x;
		m_y = y;
	}
	int getX()
	{
		return m_x;
	}
	int getY()
	{
		return m_y;
	}
private:
	int m_x;
	int m_y;

};

class Circle
{
public:
	void setXY(int x, int y)
	{
		x0 = x;
		y0 = y;
	}
	void setR(int r)
	{
		m_r = r;
	}
	bool judgePoint(Point &p)
	{
		int dd;
		dd = (p.getX() - x0)*(p.getX() - x0) + (p.getY() - y0)*(p.getY() - y0);
		if (dd > m_r*m_r)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
private:
	int x0;
	int y0;
	int m_r;
};

int main()
{
	Circle c;
	c.setXY(2, 2);
	c.setR(2);

	Point p;
	p.setXY(8, 8);

	if (c.judgePoint(p) == true)
	{
		cout << "圆的内部" << endl;
	}
	else
	{
		cout << "圆的外部" << endl;
	}

	return 0;
}