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: 2181 + 397 + 8824 - 2945 + 612 + 9971 + 1036 - 7693

SOLUTION: -8021

PROBLEM: 5778 + 1647 - 2800 + 3747 + 3449 + 90 - 2891 + 685

SOLUTION: 1851

PROBLEM: 8104 - 6068 + 6551 - 8747 - 2654

SOLUTION:
19022