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]: 7021 # 2043 @ 7414 # 2632 @ 2939 @ 8718 @ 2731
[A]: 24148


[Q]: 5031 # 649 # 8975 @ 1853 # 5257 # 1383
[A]: -9380


[Q]: 5613 # 9747 # 5763 # 9161 @ 5425 # 8540 @ 4167
[A]:
-18006