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]: 995 @ 6856 @ 867 # 7415 # 9581
[A]: -8278


[Q]: 497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392
[A]: -3306


[Q]: 1320 @ 3923 # 1080 # 3521 # 8998 @ 4479 # 2559 # 7680
[A]:
-14116