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: 3438 # 3865 # 956 # 3020 @ 2696

A: -1707
****
Q: 9074 # 3474 @ 2553 @ 8125 # 7981 # 1438 @ 9668

A: 16527
****
Q: 6322 # 7953 # 5 @ 7093 @ 5659 @ 5045 # 904

A:
15257
****