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]: 7806 # 6020 # 4616 @ 3594 # 6312 # 5362 # 4403 @ 3666
[A]: -11647


[Q]: 9954 @ 4250 # 4835 @ 6737 # 8434 # 6461 @ 1008
[A]: 2219


[Q]: 499 @ 9434 # 2816 # 5964 @ 4951 @ 2117 @ 690
[A]:
8911