struct Entity {
    int position;
    int velocity;
    int acceleration
}

struct George {
    int position;
    int velocity;
    int acceleration;
    int age
}

struct Aidan {
    int position;
    int velocity;
    int acceleration;
    int height
}

void print_entity(Entity e) {
    print_string("position: ");
    print_int(e.position);
    print_string(" velocity: ");
    print_int(e.velocity);
    print_string(" acceleration: ");
    print_int(e.acceleration);
    print_string(" ");
    return;
}

int program(int argc, string[] argv) {
    var aidan = new Aidan {
        position = -10;
        velocity = 1;
        acceleration = 2;
        height = 4
    };
    var george = new George {
        position = 0;
        velocity = -1;
        acceleration = 3;
        age = 4
    };
    var entities = new Entity[]{aidan, george};
    for (var time = 0; time < 100; time = time + 1;) {
        for (var i = 0; i < length(entities); i = i + 1;) {
            entities[i].velocity = entities[i].acceleration + entities[i].velocity;
            entities[i].position = entities[i].position + entities[i].velocity;
        }
    }
    print_string("Printing Aidan info! ");
    print_entity(aidan);
    print_string("height: ");
    print_int(aidan.height);
    print_string(" Printing George info! ");
    print_entity(george);
    print_string("age: ");
    print_int(george.age); 
    print_string(" ");
    return 0;        
}