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.

Q: 8247 - 6987 - 8915 - 9962

A: 34111
****
Q: 9776 + 5760 + 5961 - 1401 - 1368

A: 824
****
Q: 4994 - 2365 - 2867 + 8886 - 7623

A:
8963
****