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]: 6557 @ 9368 # 307 @ 2982 # 8398 # 9241 # 4697 # 6790
[A]: -10526


[Q]: 6348 # 2614 @ 3559 @ 9670 # 1137 # 9684
[A]: 6142


[Q]: 5378 @ 1839 @ 6271 @ 5704
[A]:
19192