A process requires 6 tasks. There are 3 workers. Each worker is equally skilled at each task. Workers must be assigned consecutive tasks. Because they work on a U shaped line, tasks 1 and 6 are considered consecutive. For example, worker A could do the first 4 tasks, B could do task 5 and C could do task 6. Or, worker A could do tasks 1, 5 and 6, while B does 2 and C does 3. However, it is not possible to assign Employee A to tasks 1 and 3 while Employee B is assigned tasks 2 and 4. Furthermore, each task must be assigned to one person. What is the maximum flow rate of this process (units per hour)?