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.
--------
Question: 7457 - 9732 + 1691 + 2450 + 16 + 1610 + 1729

Answer: 9693


Question: 4148 + 9216 - 5756 - 5558 + 2801 - 7501 + 1939 + 3102 + 6894

Answer: -989


Question: 8082 - 5907 - 9892

Answer:
23881