Dylan, bonds portfolio manager, currently adopting a duration-matched strategy in his managed funds. His portfolio has a duration of 4.3 years, with a market value $60,000,000. He plans to adjust the duration of his portfolio to 3.7 years based on his forecast of market. Assume that he can use 5-year T-note futures contracts to hedge the risk, with one-tick changes in interest rates, this futures contract value will change by $25. Should he long or short? and calculate the number of futures contracts he should long or short?