TASK DEFINITION: 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.
PROBLEM: 3997 - 5279 - 8866 - 8214 - 3538 + 6690 - 4565 + 30

SOLUTION: 27739

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

SOLUTION: -28412

PROBLEM: 9176 + 4889 + 3853 + 9595 - 7959 - 3721 + 1446 - 1390

SOLUTION:
2463