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: 4148 + 9216 - 5756 - 5558 + 2801 - 7501 + 1939 + 3102 + 6894

SOLUTION: -989

PROBLEM: 3980 + 6122 + 3529 - 9952

SOLUTION: 4281

PROBLEM: 800 - 3022 - 9936 + 7544

SOLUTION:
6214