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: 3980 + 6122 + 3529 - 9952

Answer: 4281


Question: 8157 - 2717 - 1214 + 8558 + 7391 - 7163 + 6203 - 6912

Answer: 4011


Question: 1547 - 9582 - 1546 + 4772 - 7194 + 5282 + 2908 - 7082

Answer:
13989