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: 4486 + 7884 - 172 + 2615

SOLUTION: -5841

PROBLEM: 5316 + 506 - 8402

SOLUTION: 13212

PROBLEM: 7833 - 167 + 1908 - 5075 - 4731 - 457

SOLUTION:
16355