instruction:
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
question:
8816 # 8770 # 5004
answer:
-4958


question:
7640 @ 3347 @ 904
answer:
11891


question:
8151 @ 7245 @ 3976 @ 212 # 2317
answer:

17267