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.

2510 - 5839 + 9950 + 740
-2341

8338 + 7035 - 2067 - 1210 + 9433 + 1604
-6457

7612 - 2038 - 481

10131