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]: 2821 @ 5327 # 3350 # 3607 @ 7010 @ 6824 # 9975 # 38
[A]: 5012


[Q]: 9110 # 7535 @ 8117 # 9919 @ 6813 @ 187 # 5187
[A]: 1586


[Q]: 2977 # 4470 # 76 @ 164 @ 8433 # 2054 # 4953
[A]:
21