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: 6667 - 31 + 1584 - 1542 - 6475 + 9319 + 2509 - 1895

SOLUTION: 3198

PROBLEM: 7555 + 8285 + 7132 + 9363 - 3515

SOLUTION: -13710

PROBLEM: 5823 + 9414 - 4635 + 8951 - 3513 + 4644 + 7921

SOLUTION:
-16959