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]: 7217 @ 2604 @ 9974 @ 8133 @ 8987 # 6381 # 7662
[A]: 22872


[Q]: 345 @ 1076 @ 7948 # 854
[A]: 8515


[Q]: 5489 @ 3667 @ 6883 # 2309 @ 4461
[A]:
18191