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: 3894 # 3818 # 2119 # 6333

A: -8376
****
Q: 16 @ 4157 @ 3953 @ 8863

A: 16989
****
Q: 6531 @ 91 @ 8123 # 4848 @ 5956

A:
15853
****