0 | 1000 | 1000 | 500 | 0 | −500 | −1000 | −1000 |
6 | 500 | 500 | 0 | −500 | −500 | −1000 | −1500 |
12 | 500 | 0 | −500 | −1000 | −1000 | −1000 | −1500 |
18 | 0 | 0 | −1000 | −1000 | −1000 | −1500 | −1500 |