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: 8025 - 6991 - 3299 + 9670 - 3471

Answer: 12116


Question: 2537 - 3199 + 5925 + 8172 + 3564 + 8810

Answer: -20735


Question: 3342 + 8916 - 6909 - 3627 - 798 - 7899 + 5331 + 4259 - 8830

Answer:
12899