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: 5371 + 2365 + 9586 - 6312 - 8369 - 7840 - 1823

SOLUTION: 17764

PROBLEM: 278 - 655 + 5773 - 8755 + 6658 + 6123 + 1095 + 6698

SOLUTION:
-16659