Morning View National Bank reports that its assets have a duration of 7 years and its liabilities average 1.75 years in duration. To hedge this duration gap, management plans to employ Treasury bond futures, which are currently quoted at 112-170 and have a duration of 10.36 years. Morning Views latest financial report shows total assets of $100 million and liabilities of $88 million. Approximately how many futures contracts will the bank need to cover its overall exposure?