In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer

Ex Input:
6015 # 4758 @ 9332 @ 3048 @ 2544 # 1136 # 4093 @ 2060 @ 570

Ex Output:
13582


Ex Input:
5406 @ 9263 @ 7443 @ 6591 # 7496 @ 2721 # 7867

Ex Output:
16061


Ex Input:
5047 # 1376 @ 5448 # 6636

Ex Output:

2483