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: 3583 - 967 - 3552 + 7898 - 1248 + 6992 - 5291 + 819

SOLUTION: -1068

PROBLEM: 3876 + 6607 - 1034 - 2483 + 544 - 1053 + 4907 + 1303 + 3904

SOLUTION:
-8819