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]: 1664 # 2003 # 3533
[A]: -3872


[Q]: 3965 @ 4333 @ 603 @ 5429 @ 625 @ 4204 # 2456 # 4234
[A]:
12469