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

[Q]: 872 @ 547 # 4476 @ 6631 # 8433 # 452 @ 5115
[A]: -196


[Q]: 8899 # 4509 # 9411 # 7373
[A]: -12394


[Q]: 2522 # 9497 @ 996 @ 3658 # 5629 @ 8602
[A]:
652