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

8842 @ 3530 @ 7537
19909

605 @ 9301 @ 640 # 9148 # 8015
-6617

6628 @ 7709 @ 528 @ 8813

23678