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: 1446 @ 5354 # 6450 # 2821 @ 2258

Answer: -213


Question: 605 @ 9301 @ 640 # 9148 # 8015

Answer: -6617


Question: 4788 @ 4137 # 957

Answer:
7968