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: 4139 - 6541 - 2616 + 299 - 700 - 6684

Answer: 20381


Question: 7457 - 9732 + 1691 + 2450 + 16 + 1610 + 1729

Answer: 9693


Question: 8290 - 1537 + 1413 - 8563

Answer:
16977