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: 9776 + 5760 + 5961 - 1401 - 1368

SOLUTION: 824

PROBLEM: 3238 + 2914 + 4122

SOLUTION:
-3798