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]: 9546 @ 5515 @ 6740 # 2069 # 921 # 9110 # 5067 # 3917 # 6434
[A]: -5717


[Q]: 7803 @ 6524 @ 7077 # 1627 # 3959
[A]: 15818


[Q]: 617 @ 280 @ 9404 @ 9953 # 2231 @ 955 # 2955 @ 4993 # 8586
[A]:
12430