Each technician is also allowed to take 2 days off every week. Technicians prefer to have 2 consecutive days off. There are therefore seven possible schedules (Monday and Tuesday off, Tuesday and Wednesday off, Wednesday and Thursday off, etc.). Formulate and solve an integer linear programming model that will determine the number of technicians for each one of the seven schedules while minimizing weekly cost and providing the necessary capacity and giving each lab technician 2 days off. Hint: Define the decision variables as the number of technicians in schedule 1, 2, 3