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]: 5640 @ 148 @ 7578 # 2373 # 3438 @ 4775 # 8187
[A]: 4143


[Q]: 6199 # 9863 # 8197 # 3975 @ 1000 @ 740 @ 3216 @ 2122 # 4226
[A]: -12984


[Q]: 6427 @ 6985 @ 4314 # 777 @ 696 @ 2168 # 8760 @ 8332
[A]:
19385