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.

1837 - 6362 - 226
8425

240 - 438 + 497 - 5901 - 1960 + 4782 + 6400 - 4055
915

7538 - 8802 + 1034 + 7527 + 929 + 30 + 3285 - 7551 - 3105

14191