Q: 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
4350 # 9254 @ 7442 # 3236 # 9250 @ 5966 @ 5283 # 3543 @ 1819
A:
-423