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

Q: 6729 # 1204 # 5514 # 8079

A: -8068
****
Q: 2989 # 6833 # 4298 @ 8863 # 8408

A: -7687
****
Q: 6404 @ 9025 # 4447 # 2571 @ 1954

A:
10365
****