A village delivers mail to nearby villages either by runners or canoers. Runners can carry three bags of mail each time and takes 4 hours. Canoers can carry ten bags of mail each time and takes 2 hours. At most 33% of deliveries can be by canoe. Additionally, the village can spare at most 200 total hours and at least 4 runners must be used. How many of each way to deliver must be used to maximize the total amount of mail that can be delivered?