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: 6203 # 8978 # 1139 @ 240 # 4716

Answer: -8390


Question: 7775 # 9805 # 8727

Answer: -10757


Question: 8308 @ 6009 # 9950

Answer:
4367