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:
7775 # 9805 # 8727
answer:
-10757


question:
5137 @ 4207 @ 1156
answer:
10500


question:
9980 # 4949 @ 2866 # 9118
answer:

-1221