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]: 8157 # 6333 @ 7928
[A]: 9752


[Q]: 1439 @ 4809 @ 6755 # 4840 @ 491 @ 9049 @ 8905 @ 8915
[A]: 35523


[Q]: 6215 # 7220 # 6887 @ 7053
[A]:
-839