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:
5355 - 3029 - 4426 - 467 + 3089 - 2982 - 4645 - 9070 - 3676

Ex Output:
30561


Ex Input:
9806 + 3365 + 4506 + 7148 - 8080 + 5035 + 2028 + 7278

Ex Output:
-11474


Ex Input:
198 + 9425 + 9667 - 6749 - 5927 + 4162 + 6329 + 7668 + 6049

Ex Output:

-30426