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

415 @ 1312 # 9916 @ 9168 @ 1911
2890

605 @ 9301 @ 640 # 9148 # 8015
-6617

1865 # 4690 # 1261 @ 9873 # 6473

-686