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: 6820 - 387 + 8290 - 9203 - 9292 + 9249 - 3079

SOLUTION: 11242

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

SOLUTION: 11988

PROBLEM: 8584 + 148 - 6966 + 3894

SOLUTION:
11508