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

4282 @ 2191 # 7458 @ 8928
7943

720 # 1309 @ 989 @ 1211 # 5749 # 7 @ 3147 # 9792 # 1243
-12033

569 @ 2078 @ 2757 # 9211

-3807