A company rents a small building with 10,000 square feet of space for $100,000 per year. The rent is allocated to the company's three departments on the basis of the value of the space occupied by each. Department 1 occupies 1,500 square feet of ground-floor space, Department 2 occupies 3,500 square feet of ground-floor space, and Department 3 occupies 5,000 square feet of second-floor space. If rent for comparable floor space in the neighborhood averages $15.00 per sq. ft. for ground-floor space and $10 per sq. ft. for second-floor space, what annual rent expense should be charged to each department