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: 1989 - 7828 - 4806 - 7481 + 9860 - 9696 - 7086 + 272 + 8952

SOLUTION: 19802

PROBLEM: 4899 + 5775 - 8386 + 4273

SOLUTION: 3237

PROBLEM: 2510 + 9033 - 6084 + 7965 + 5904 + 875 - 1117 + 8181 - 5999

SOLUTION:
-16248