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: 2144 - 4158 + 4207

SOLUTION: 2095

PROBLEM: 7646 + 8509 - 4372 - 9840 - 6377 - 2924 + 869

SOLUTION: 21781

PROBLEM: 9814 + 9850 + 7217 - 7480 - 4117 + 9084 - 6452 + 8674 + 5275

SOLUTION:
-12237