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:
933 - 48 - 7218 - 7880 - 4299

Ex Output:
20378


Ex Input:
938 + 566 + 5270 + 5634 - 7451 - 114

Ex Output:
-2967


Ex Input:
5378 + 8325 + 8198 + 1471 + 5847 + 4173

Ex Output:

-22636