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: 2759 - 7972 - 7615 + 151

Answer: 18195


Question: 6639 - 5724 - 3521 - 6709 - 6185 + 6067 + 9560 - 9829 + 8371

Answer: 14609


Question: 3541 + 6775 - 9779 + 8996 + 5835 - 6395 + 9568 - 2748

Answer:
-8711