You are long 10 gold futures contracts, established at an initial settle price of €1,000 per ounce, where each contract represents 100 ounces. Over the subsequent four trading days, gold settles at €1,003, €1,009, €1,012 and €1,004, 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.