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: 306 + 2346 - 7752 + 7173

SOLUTION: -1461

PROBLEM: 6570 + 2902 + 9219 - 6971 + 6886 + 765

SOLUTION: -6231

PROBLEM: 353 + 9481 - 4919 + 3539

SOLUTION:
-7748