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]: 9938 # 267 # 6696 # 8186 # 5729 # 8517 # 6331 @ 7607
[A]: -18181


[Q]: 4809 # 9135 # 3011 # 4393 # 1039 # 3878 @ 1559 # 3798
[A]: -18886


[Q]: 2787 @ 3800 # 142 # 7750 # 8581 @ 5447 @ 1512 @ 6550
[A]:
3623


