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.

Ex Input:
4733 + 1935 - 5989 + 2634 - 6798 + 9853 + 9265 - 14 - 4165

Ex Output:
-1988


Ex Input:
4310 + 5678 + 9065 - 8181 + 5925 - 3189 + 558

Ex Output:
-5546


Ex Input:
200 + 355 + 2175 + 7379 + 6080 - 8358 + 5571 - 3725

Ex Output:

-9277