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: 7757 # 4475 @ 6447 # 2209 # 9966

A: -2446
****
Q: 6796 # 5118 @ 4061 @ 2573 # 7960 @ 5889 # 7812 @ 3174

A: 1603
****
Q: 4383 @ 2277 # 8337 # 344 @ 2123 @ 7025 # 5146 @ 7980

A:
9961
****