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: 2776 - 8931 + 2788 + 8315 - 6570 + 8385 - 2789

SOLUTION: 1578

PROBLEM: 4242 - 1088 - 4873 + 766 + 1641 + 7003 + 7327 + 5270

SOLUTION: -11804

PROBLEM: 6538 - 3425 + 2688 + 7111 + 2767 - 1164

SOLUTION:
-1439