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: 5473 - 4337 - 6499 - 9119

SOLUTION: 25428

PROBLEM: 4264 - 4438 + 3871 + 7585 - 540 - 3455 - 6016

SOLUTION: 7257

PROBLEM: 2372 + 5790 + 8181 - 2209 - 440

SOLUTION:
-8950