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.

4148 + 9216 - 5756 - 5558 + 2801 - 7501 + 1939 + 3102 + 6894
-989

3385 - 6152 + 1565 - 9813 - 5112 - 2865 + 2979
22783

3225 + 3857 + 8462 + 230 - 2831 + 8706 + 9484 + 6655 - 2926

-28412