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: 4331 - 362 - 8646 - 8722 + 6424 + 4083 - 579 + 4561

SOLUTION: 7572

PROBLEM: 9085 + 2845 - 6159 + 1404 + 2110 - 8797

SOLUTION: 17682

PROBLEM: 699 - 6434 - 6104 + 5486 + 2695 + 3610 + 8652 - 7062 + 5357

SOLUTION:
-5501