The coordinator of an Outdoor Adventure Program plans to take at least 114 college students on a river expedition. He plans to rent canoes and inflatable rafts. Each canoe can transport two persons, and each raft can transport three persons. The coordinator has the ability to haul at most 53 watercraft. The rental company charges $11 per canoe and $17 per raft. How many of each type of watercraft should be rented to minimize the cost and what is the minimum cost?