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]: 3438 # 3865 # 956 # 3020 @ 2696
[A]: -1707


[Q]: 8422 @ 5670 # 5825 @ 3613
[A]: 11880


[Q]: 1855 # 9818 @ 3927 @ 9533 # 8557 @ 619 # 7543 # 2844
[A]:
-12828