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: 2863 @ 9899 # 2358

A: 10404
****
Q: 7944 # 4957 # 8255 @ 684

A: -4584
****
Q: 4982 @ 9397 @ 9427 # 5041

A:
18765
****