Given the task definition and input, reply with output. 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

8342 # 1979 @ 2299 @ 832 @ 9485 # 5846 @ 9851 # 5843 @ 3524

20665