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: 2285 @ 1970 @ 4720

A: 8975
****
Q: 4565 @ 7065 # 5397

A: 6233
****
Q: 2179 @ 2066 @ 7033 @ 2042 # 1218 # 3039 # 838 # 4506

A:
3719
****