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

7640 @ 3347 @ 904
11891

2370 # 437 # 89 # 6625 # 2724 @ 1767 # 2848 @ 3753
-4833

7775 # 9805 # 8727

-10757