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: 3980 + 6122 + 3529 - 9952

SOLUTION: 4281

PROBLEM: 7344 + 9206 + 3989 + 5648 - 7620

SOLUTION: -3879

PROBLEM: 6506 - 8715 + 5800 + 1904 + 3642

SOLUTION:
3875