3.3. Assume that the interest rater is constant. Design a spreadsheet to compute the daily marking-to-market cash flow of a long futures position on a stock with delivery in 30 days. The spreadsheet should take the (continuously compounded) constant interest rate r and daily stock prices S(0), S(1),..., S(30) as inputs. Assume for simplicity that trading occurs on each of the 30 consecutive days. (30 marks) 3.3. Assume that the interest rater is constant. Design a spreadsheet to compute the daily marking-to-market cash flow of a long futures position on a stock with delivery in 30 days. The spreadsheet should take the (continuously compounded) constant interest rate r and daily stock prices S(0), S(1),..., S(30) as inputs. Assume for simplicity that trading occurs on each of the 30 consecutive days. (30 marks)