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

A: -1201
****
Q: 7525 + 263 - 1634 + 3644 + 6905 - 167

A: -1486
****
Q: 3487 + 6806 - 4573

A:
1254
****