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: 1649 + 4642 + 613 - 7051 - 8575

Answer: 12020


Question: 1256 - 3248 - 3709 - 3019

Answer: 11232


Question: 4389 + 6990 + 4276 - 1179 - 3207 + 1501 - 2034

Answer:
-1958