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: 1559 # 9981 # 6881

Answer: -15303


Question: 3007 @ 8777 # 8750

Answer: 3034


Question: 7704 @ 8051 # 9481 # 7458 # 8273 # 4536 @ 3615

Answer:
-10378