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]: 9407 @ 4324 # 2220 # 8668 @ 1606 @ 4059
[A]: 8508


[Q]: 5098 # 2466 @ 6132 # 7008 @ 2142 # 5650 @ 531
[A]: -1221


[Q]: 6724 @ 6927 @ 8101 # 541
[A]:
21211