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.

3097 + 17 - 8842 + 4949 + 8377 + 425 - 7128 + 6500
-1201

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

523 - 5860 - 778

7161