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: 9549 - 507 + 659 + 3404 - 9243

A: 15236
****
Q: 6763 - 8006 - 6381 - 8852 + 6218 + 3788 + 7296

A: 12700
****
Q: 3871 + 290 - 4099 - 9973

A:
17653
****