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: 9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638

Answer: -1315


Question: 2285 @ 1970 @ 4720

Answer: 8975


Question: 2923 @ 45 @ 7558 # 4523

Answer:
6003