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: 2131 + 4513 + 3760 - 9342 + 7779 + 4653 + 3111

Answer: -12343


Question: 9675 + 654 - 3638 - 2409

Answer:
15068