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

SOLUTION: 1811

PROBLEM: 4444 + 4575 - 2114 - 4099

SOLUTION: 6082

PROBLEM: 4224 + 9155 + 116 - 5148 - 7166 - 7397 - 3883 - 2139

SOLUTION:
20686