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: 6628 @ 7709 @ 528 @ 8813

A: 23678
****
Q: 5631 # 7224 @ 9746 # 8532 @ 8996 # 3971 # 8538 @ 5270 # 9789

A: -8411
****
Q: 5011 # 1029 # 972

A:
3010
****