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: 7581 + 8916 + 7584 + 7731

Answer: -16650


Question: 1971 - 5591 + 4038 + 5571

Answer: -2047


Question: 3430 - 3316 + 3277

Answer:
3469