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: 4139 - 6541 - 2616 + 299 - 700 - 6684

SOLUTION: 20381

PROBLEM: 1471 + 6113 + 3177 - 2507 - 2358 + 6654

SOLUTION: -9608

PROBLEM: 4242 + 4647 - 8773 - 8163 - 5175 - 2659 - 1870

SOLUTION:
26235