ηΆζ | S1 | S2 | S3 | S4 | β |
S1 | 2 | 2 | 0 | 0 | 4 |
S2 | 2 | 9 | 4 | 0 | 15 |
S3 | 0 | 4 | 7 | 4 | 15 |
S4 | 0 | 1 | 4 | 6 | 11 |