| From\To | W1 | W2 | W3 | Availability ai |
| S1 |
|
| X | 14 |
| S2 |
|
| 8 (6) | 10 − 6 = 4 |
| S3 | X | X | 7 (6) | 0 |
| Requirement bj | 8 | 10 | 6 − 6 =0 | 18 |