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: 8441 @ 2924 # 9024 @ 6661 @ 7034 # 4821 # 4921

A: 6294
****
Q: 4839 # 9558 @ 1236 # 8758 # 3209

A: -15450
****
Q: 6902 # 3853 @ 6394 # 7158 # 7085

A:
-4800
****