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.

6570 + 2902 + 9219 - 6971 + 6886 + 765
-6231

8053 - 8275 + 3672 - 7233 + 8748 - 1270 - 6997 - 7566 + 5689
21285

7279 - 831 - 5336 - 1933 + 5531 - 4604 + 8203

6249