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:
5161 + 8791 + 9352 + 7272 + 935 + 8632 + 1201

Ex Output:
-31022


Ex Input:
2010 + 6744 - 5577 - 1182 + 8811

Ex Output:
-6786


Ex Input:
3165 + 8603 - 2566 + 297 - 1914 + 6781 + 9085 + 3950 + 4261

Ex Output:

-25332