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]: 2269 # 7857 @ 1906 @ 1098 # 6308 # 1142 @ 2063
[A]: -7971


[Q]: 722 # 9533 @ 3199 @ 4825 @ 817
[A]: 30


[Q]: 9656 # 6289 # 4308 # 2092 # 5148 @ 9253
[A]:
1072