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: 4226 - 3951 + 2613

SOLUTION: 5564

PROBLEM: 4095 - 9640 - 5113 - 9355

SOLUTION: 28203

PROBLEM: 7663 - 9976 - 3887 + 2279 + 9728 - 2113

SOLUTION:
11632