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: 5299 - 8791 + 6861

SOLUTION: 7229

PROBLEM: 4483 + 3021 - 5582 - 3918 + 8842

SOLUTION: 2120

PROBLEM: 3144 - 1252 - 363 - 458 - 8697

SOLUTION:
13914