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.

9826 - 5862 + 4973 - 7723 - 8510 + 6631 + 9611 + 1510 + 489
8707

7291 - 941 - 33 + 3812 + 4851 - 8716 - 6838 - 740
15896

1344 - 7361 - 649 - 3196 - 1892 - 9300 - 6400

30142