Blink Appliances plans to order microwaves and stoves. Each microwave requires 2 hours to unpack and set up in the storeroom, and each stove requires 4 hours. The storeroom space is limited to 50 items. The budget of the store allows only 172 hours of employee time for unpacking and setup. Microwaves yields a profit of $ 139 each, and stoves yields a profit of $ 156 each. How many of each should the store order to maximize profit?