Batch Size Task: Sales demand for products A and B are larger than the factory capacity. The factory employs one worker P, one worker R and one worker S in each shift. Work hour policy is 24 hours daily, 5 days per week. The worker in the second shift continues the job on the same workplace as the same worker in the previous shift. Workers in the same shift cannot replace each other, and all daily operations are given in the diagram. Workplace setup for worker S is required always when he switches from product A to product B and vice versa. The setup duration is 180 minutes.

Product A Product B Product A Product B