#include <iostream>
using namespace std;
class point
{
    private:
    float x,y,len;
    public:
    stand ()
    {
    this->x=0;
    this->y=0;
    }
    read (float X, float Y)
    {
        cout << "Введите абсциссу точки" << endl;
        cin << X;
        cout << "Введите ординату точки" << endl;
        cin << Y;
    }
    compare (float len)
    {
        len=sqrt(sqr(X-x)+sqr(Y-y))
        cout << len << endl;
    }
};

int main()
{
point :: read (float X, float Y);
point :: stand ();
point :: compare ();
}