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: 6472 # 6421 @ 7649 @ 4005

Answer: 11705


Question: 353 # 799 @ 4824 # 3212 @ 1811 @ 752

Answer: 3729


Question: 1530 @ 4516 @ 1347 # 4622 # 1267 # 4060 # 7665 @ 6407 # 7863

Answer:
-11677