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]: 6277 # 2029 # 4158 @ 5412 # 6845 # 6694 @ 5432
[A]: -2605


[Q]: 992 # 6304 @ 9489 # 6814 # 5448 @ 4565
[A]: -3520


[Q]: 7774 # 6714 @ 7 @ 4659 @ 3825 # 7788 @ 2232
[A]:
3995