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.

1078 + 2128 + 513 + 5898 - 8020
559

2474 + 4117 - 310 - 2018 - 6488 - 3458 - 1404
12035

4250 - 744 - 6359

11353