1 | 2 | 3 | 0 | −3 | −2 | −1 |
2 | 3 | 4 | 0 | −4 | −3 | −2 |
3 | 4 | 5 | 0 | −5 | −4 | −3 |
4 | 5 | 6 | 0 | −6 | −5 | −4 |
3 | 4 | 5 | 0 | −5 | −4 | −3 |
2 | 3 | 4 | 0 | −4 | −3 | −2 |
1 | 2 | 3 | 0 | −3 | −2 | −1 |