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: 523 # 5860 # 778

A: -6115
****
Q: 958 # 263 # 1097 @ 3868 # 3982

A: -516
****
Q: 3519 @ 3489 @ 5475 @ 8522 @ 8700 # 6452 # 1559

A:
21694
****