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: 5137 @ 4207 @ 1156

A: 10500
****
Q: 6628 @ 7709 @ 528 @ 8813

A: 23678
****
Q: 8725 # 5258 @ 7561 # 4652 @ 2293 # 7403 # 2707 @ 5486

A:
4045
****