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: 8885 - 9148 - 6665 - 7609 + 4183 + 3591 + 5158 - 5649 + 9511

SOLUTION: 15513

PROBLEM: 473 - 2568 + 9771 - 2525 + 3277 + 261 - 8230 + 6021

SOLUTION: -5534

PROBLEM: 3796 + 7523 - 357

SOLUTION:
-3370