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

1086 # 7477 # 9664 @ 5904 # 8033 # 5563
-23747

7924 @ 8575 # 3974 @ 6720
19245

129 @ 7992 # 6485

1636