In October of Year 1, Rocky sold land for $100,000 on the installment method to Natasha. At the time of the sale, the land had an adjusted basis of $40,000. In Year 1, Natasha made a down payment of $20,000 and agreed to pay $16,000 per year plus interest for the next 5 years. The payments were to be made May 1 of each year. In March of Year 3, before the Year 3 payment was made, Rocky sold the installment obligation for $35,000. What is the amount of Rocky's gain or (loss) for Year 3 on the sale of the installment obligation?