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: 9549 - 507 + 659 + 3404 - 9243

Answer: 15236


Question: 3069 + 3141 - 6765 + 85 - 9346 + 8391 + 121 + 7644

Answer: -202


Question: 7023 + 8210 - 166 + 3635 - 3473 + 4067 - 8741 + 3721 - 6161

Answer:
5931