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:
5193 # 9816 # 9875 # 1011 @ 1147 @ 5023

Ex Output:
-9339


Ex Input:
6055 # 1440 # 3272 # 5643 @ 150 @ 7658 # 8655 @ 8463 # 8156

Ex Output:
-4840


Ex Input:
6570 # 5930 # 4578 # 5327 # 3793 @ 8527 @ 1649

Ex Output:

-2882