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.

1989 - 7828 - 4806 - 7481 + 9860 - 9696 - 7086 + 272 + 8952
19802

2010 + 6744 - 5577 - 1182 + 8811
-6786

7085 + 2077 - 3530

8538