#include <SFML/Graphics.hpp>

int main() {
    sf::RenderWindow window(sf::VideoMode(800, 600), "SFML demo");
    sf::CircleShape shape(50.f);
    shape.setFillColor(sf::Color::Green);
    shape.setPosition({375.f, 275.f});

    while (window.isOpen()) {
        sf::Event event;
        while (window.pollEvent(event)) {
            if (event.type == sf::Event::Closed)
                window.close();
        }

        window.clear(sf::Color(30, 30, 40));
        window.draw(shape);
        window.display();
    }
}