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: 3980 + 6122 + 3529 - 9952

Answer: 4281


Question: 4331 - 362 - 8646 - 8722 + 6424 + 4083 - 579 + 4561

Answer: 7572


Question: 7272 - 1513 + 6811

Answer:
1974