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.

1163 - 3809 + 5176 - 2533 + 4885 - 8890 - 506 + 5874
966

1616 - 440 + 11
2045

3170 + 6837 + 3768

-7435