plex Point {
    nat x;
    nat y;

    init(nat x, nat y) {
        this.x = x;
        this.y = y;
    }

    toS() {
        return "[x:" + (this.x as str) +
        ", y:" + (this.y as str) + "]";
    }
}

plex Rect {
    Point top_left;
    Point bottom_right;
    nat width;
    nat height;

    init(Point tl, Point br, nat width, nat height) {
        this.top_left = tl;
        this.bottom_right = br;
        this.width = width;
        this.height = height;
    }

    toS() {
        return "[top_left:" +
        this.top_left.toS() +
        ", bottom_right: " +
        this.bottom_right.toS() +
        ", width:" + (this.width as str)  +
        ", height:" + (this.height as str) + "]";
    }   
} 

function create_geometry() Rect {
    Point tl(10, 20);
    Point br(100, 50);
    Rect final_rect(tl, br, 90, 180);
    return final_rect;
}

function main() int {
    Rect r = create_geometry();
    print(r.toS());
    return 0;
}