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: 8798 - 6887 - 9478 - 7713 + 8512 + 7926 - 8604 + 2947 + 7573

SOLUTION: 14522

PROBLEM: 7427 + 8795 - 4104 + 7720 - 6667

SOLUTION: 1683

PROBLEM: 2688 - 4570 + 2709 + 9964

SOLUTION:
-5415