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: 5270 - 8957 + 6318 - 3390

SOLUTION: 11299

PROBLEM: 8769 - 3041 - 6567 + 1136 + 3380 + 4191 + 2049 + 7794 - 4291

SOLUTION: 4118

PROBLEM: 8193 - 7515 + 5618 - 1425 + 5846

SOLUTION:
5669