| There are 4 hosts numbered from 0 to 3, and 2 tasks numbered from 0 to 1. Each host has a set of tasks that it is interested in: | |
| Host 0 is interested in task 1. | |
| Host 1 is interested in task 0. | |
| Host 1 is interested in task 1. | |
| Host 2 is interested in task 0.. |