You are short 25 gasoline futures contracts, established at an initial settle price of $1.36 per gallon, where each contract represents 42,000 gallons. Over the subsequent four trading days, gasoline settles at $1.33, $1.37, $1.39, and $1.44, respectively. Compute the cash flows at the end of each trading day, and compute your total profit or loss at the end of the trading period.