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: 4449 @ 4019 @ 7637

A: 16105
****
Q: 9012 @ 4688 # 2482 # 8827 # 2749 # 259 # 8385

A: -9002
****
Q: 3300 # 1785 @ 2364

A:
3879
****