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: 3997 - 5279 - 8866 - 8214 - 3538 + 6690 - 4565 + 30

Answer: 27739


Question: 395 - 3060 - 445 + 3450 + 3365

Answer: -2915


Question: 8602 - 1293 - 8063 - 4529 + 453 - 6407

Answer:
28441