Two workers at $\text{'}$A$\text{'}$ process jobs simultaneously. Finished jobs then move to the first available spot at station B$,$ where four workers are processing items simultaneously. Finally, each job moves to station C$,$ where one person finishes the work required. All jobs require that a worker spend time "changing over" before processing the next incoming job. Assume that every incoming job contains five items $($i$.$e$.,N=5).$