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: 1922 - 413 - 5668

SOLUTION: 8003

PROBLEM: 8666 + 80 + 2370 - 4680 - 3944 + 3621 + 4402 - 5171

SOLUTION: 11988

PROBLEM: 1503 - 7711 - 5456 + 6571 + 2214 - 4057 + 7501 + 3972 - 649

SOLUTION:
-882