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.

23 - 7991 - 1064 + 8364
714

8433 + 1618 + 9022 - 2431 - 8097 + 8068
253

4426 + 3502 - 1481 - 5864 + 7254 - 9690 - 3269 + 1476 - 6172

18670