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: 4331 - 362 - 8646 - 8722 + 6424 + 4083 - 579 + 4561

SOLUTION: 7572

PROBLEM: 3915 + 4904 + 4887 + 7162 - 3798 + 233 + 1101 - 7758 - 4627

SOLUTION: 1811

PROBLEM: 7363 + 2503 + 6389 - 3308 - 2920 - 1005

SOLUTION:
5704