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: 4397 - 3478 - 9837 - 7164 + 7972 + 3676

A: 13228
****
Q: 2219 - 6451 + 1224 + 2776 + 8750 - 8397 - 5833 - 9401 - 554

A: 20105
****
Q: 7849 + 6432 - 7984 + 8902

A:
499
****