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: 3171 - 3678 - 3096 - 5842 - 3188

SOLUTION: 18975

PROBLEM: 3719 - 4138 - 7321 - 9097 + 4558 + 9667 + 1909 + 647 - 6132

SOLUTION: 13626

PROBLEM: 4133 - 5949 + 5322 - 4947 - 6841 + 9376 + 5699 + 4855

SOLUTION:
-3382