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: 2837 + 8737 + 9015 - 7647 - 1903 - 3427 - 2034 - 3680 - 8565

Answer: 12341


Question: 6844 + 1340 - 4174 - 5664 + 4911 - 5241

Answer: 15672


Question: 6267 - 6133 + 7482 - 9157 + 3729 - 8427

Answer:
18773