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: 1229 - 4354 + 912 - 1766

Answer: 6437


Question: 9910 + 9584 - 6394 - 5927

Answer: 12647


Question: 4177 + 9875 - 8091 + 1645 - 1202 - 8027

Answer:
9977