A process requires 6 tasks that must be performed in order.

Currently there are 3 employees that are equally skilled at each task.

Employee 1 is assigned tasks 1 and 2, employee 2 is assigned tasks 3 and 4 and employee 3 is assigned tasks 5 and 6.

The task times (all in seconds) are given in the process diagram below. For example, task A requires 15 seconds. Task B 20secs, Task C 30secs, Task D 10 secs, Task E 25secs, Task F 20secs.

Suppose the system started without any work in process inventory (i.e., an empty system).

How long would this process take to produce 10 units (in seconds)?

(Report your answer as an integer.)