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: 6646 + 4878 - 8881 - 992 + 7276

SOLUTION: 4365

PROBLEM: 7525 + 263 - 1634 + 3644 + 6905 - 167

SOLUTION: -1486

PROBLEM: 9613 + 7853 - 1401 - 8503 + 7761 + 7359

SOLUTION:
-3456