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:
6051 + 6310 + 7813 + 2282 - 7601 + 4598 - 1928 - 9696 - 6497

Ex Output:
10770


Ex Input:
3664 - 184 - 3835 + 2124 - 1567 - 8341 - 3628 - 8279

Ex Output:
27374


Ex Input:
5371 + 2365 + 9586 - 6312 - 8369 - 7840 - 1823

Ex Output:

17764