A crew of drywallers, which includes 3 drywall hangers and 1 finisher, can install 3,000 square feet of drywall (also called sheetrock) per day on walls and 2,000 square feet on the ceiling, including one (1) coat over all of the joints; the crews are working standard 8- hour days, 5 days a week. Assuming an extra 6 days is required for the finisher to sand and put a second and third coat over the joints, how many working days will it take to install and finish the drywall on a structure with interior dimensions of 200 long x 75 wide x 12 tall? Do not consider interior walls or partitions, use the measurements provided above