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: 6738 - 471 + 8724

Answer: -1515


Question: 7312 - 1598 - 5813 - 8994 + 9174 - 4767 + 4076

Answer: 15234


Question: 8882 + 3090 + 4521 - 7369 - 3456 + 4048 + 515 + 2691

Answer:
4842