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: 981 + 3338 + 96 + 3479 + 574 + 2567 + 3009 + 2356 - 4663

SOLUTION: -9775

PROBLEM: 3561 + 2090 - 1286 - 2259 - 7069 + 5058

SOLUTION: 7027

PROBLEM: 4762 + 7708 - 90 - 9073 + 2972 - 806 - 3675 + 6893

SOLUTION:
833