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: 4854 - 3903 - 3601 - 6666 - 170 - 3411 - 1306

A: 23911
****
Q: 7581 + 8916 + 7584 + 7731

A: -16650
****
Q: 3580 + 2817 - 4754

A:
5517
****