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]: 6904 # 1007 @ 9690 @ 9967 @ 9620 @ 4765
[A]: 39939


[Q]: 9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638
[A]: -1315


[Q]: 3245 # 8747 # 5836 # 6567 @ 8132
[A]:
-9773