In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.
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Question: 2776 - 8931 + 2788 + 8315 - 6570 + 8385 - 2789

Answer: 1578


Question: 5299 - 8791 + 6861

Answer: 7229


Question: 3844 - 5783 + 7487

Answer:
2140