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: 4470 @ 7285 # 4583 @ 9451 # 3236 # 3108 # 2875

A: 7404
****
Q: 7065 # 7713 # 7473 # 664 # 8030

A: -16815
****
Q: 4900 # 7450 # 73

A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
-2623
****
