It is November of 2015 and you currently own $10 million 5.375% US Treasury Bonds that mature in 2030. The bonds currently trade at 121-5 and yield 3.52%. You are concerned about potential interest rate increases and decided to sell November 2015 Treasury bond futures. How many contracts do you buy? Assuming the Treasury bond futures are a perfect hedge, what happens to your long and short positions if rates decline 0.5%?