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: 9748 + 7907 + 7494 - 2074 + 9313

SOLUTION: -12892

PROBLEM: 1312 - 814 - 8592 - 4040 - 5158 + 6817

SOLUTION: 13099

PROBLEM: 9879 - 8585 + 4078 - 6210 + 7239 + 3002 - 2455 + 9817

SOLUTION:
2993