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: 7775 # 9805 # 8727

A: -10757
****
Q: 7539 # 9710 # 800 # 5609

A: -8580
****
Q: 6738 # 5863 # 5287 @ 6672

A:
2260
****