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: 9493 + 2402 - 721 + 5448 + 2919

SOLUTION: -555

PROBLEM: 9350 + 2320 + 5626 - 4349

SOLUTION: 5753

PROBLEM: 7579 - 5004 - 5657

SOLUTION:
18240