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: 486 # 3873 # 1187

Answer: -4574


Question: 8760 @ 4583 # 2942 # 3854 # 5061 @ 31 # 5965

Answer: -4448


Question: 9421 @ 8222 # 3184 @ 790 @ 9508 # 9540 # 8004

Answer:
7213