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

8899 # 4509 # 9411 # 7373
-12394

64 # 5994 @ 8659 # 885
1844

6443 # 911 @ 4665 # 8565

1632

