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

9673 @ 7136 # 4171 # 8296 @ 655
4997

486 # 3873 # 1187
-4574

3984 @ 6501 # 9229 @ 7646 @ 5492 # 5638 # 3088 # 5675

-7