#include 
using namespace std;

struct point {
    double x, y;
    point(){ // empty constructor / default constructor
        x = 0;
        y = 0;
    }
    
    point(double _x, double _y) { // parameterized constructor
        x = _x;
        y = _y;
    }
};
int main() {
    point p(30, 20);
    cout << p.x << " " << p.y << endl;
    return 0;
}