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: 2367 @ 4877 @ 8467 @ 5488 # 987 # 8899

A: 11313
****
Q: 463 @ 7844 # 9816

A: -1509
****
Q: 6020 @ 1156 # 5518 # 7446 # 5607 # 8512

A:
-19907
****