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: 3438 - 3865 - 956 - 3020 + 2696

Answer: 8583


Question: 4377 + 5604 - 8336 - 2652

Answer: 9761


Question: 647 + 6043 + 9935 + 7611

Answer:
-22942