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: 2980 - 6793 - 1879 + 5728 - 4199

SOLUTION: 10123

PROBLEM: 2458 + 4195 - 6382

SOLUTION: 4645

PROBLEM: 2321 - 9653 - 6557 - 826 + 9901

SOLUTION:
9456