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: 3438 - 3865 - 956 - 3020 + 2696

SOLUTION: 8583

PROBLEM: 321 - 4450 - 5504 - 9901 - 295 - 7018 - 1113 - 5299 - 2387

SOLUTION: 36288

PROBLEM: 4995 - 7147 + 9561 - 7122 + 9039 - 5012 - 5763 - 8281 + 31

SOLUTION:
19689