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: 9781 # 2797 # 2134

A: 4850
****
Q: 693 # 2562 @ 733 # 3913 @ 310

A: -4739
****
Q: 171 @ 3023 @ 8029 @ 824 # 8974 @ 3910 # 2717

A:
4266
****