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]: 5211 # 3266 @ 3042 @ 254 # 7823 @ 4298 # 8042 # 1629 # 6738
[A]: -14693


[Q]: 427 # 7974 # 7564 @ 2404 # 4955 # 1239 # 1518 @ 906
[A]: -19513


[Q]: 6884 @ 5498 @ 1660 # 94 @ 6690 # 1618
[A]:
19020