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: 1137 - 2413 - 5470 - 9797 + 2566

Answer: 16251


Question: 597 + 4303 + 4507 + 4779 - 8079

Answer: -4913


Question: 8876 + 577 + 2129 + 264 + 6576

Answer:
-670