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:
4809 # 9135 # 3011 # 4393 # 1039 # 3878 @ 1559 # 3798
answer:
-18886


question:
9781 # 2797 # 2134
answer:
4850


question:
7672 # 5331 @ 8482 @ 7514 @ 2877
answer:

21214


