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

A: -6231
****
Q: 2010 + 6744 - 5577 - 1182 + 8811

A: -6786
****
Q: 8390 - 2539 - 5635 + 9481

A:
7083
****