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
--------
Question: 4558 @ 6469 @ 1154

Answer: 12181


Question: 3765 @ 8333 @ 5726

Answer: 17824


Question: 3778 # 4278 # 8781 @ 6620

Answer:
-2661