A firm that produces wood shutters and bookcases has received two orders for shutters: one for 100 shutters and one for 150 shutters. The 100 -unit order is due for delivery at the start of week 4 of the current schedule, and 150-unit order is due for delivery at the start of week 8. Each shutter consists of two frames and four slatted wood sections. The wood section is made by the firm, and fabrication takes one week. The frames are ordered, and lead time is 2 weeks. Assembly of the shutters require one week. There is a scheduled receipt of 70 wood sections in (i.e., at the beginning of) week 1 . Determine the size and timing of planned order releases necessary to meet delivery requirements under Lot-for-lot ordering method