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]: 5425 @ 6980 # 4301 @ 4410 # 7405 # 552 @ 4556 # 8531 # 4935
[A]: -4353


[Q]: 8899 # 4509 # 9411 # 7373
[A]: -12394


[Q]: 2141 @ 2874 @ 6960 # 81 # 4626 # 5906 @ 6215
[A]:
7577