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: 497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392

A: -3306
****
Q: 9407 @ 4324 # 2220 # 8668 @ 1606 @ 4059

A: 8508
****
Q: 7027 @ 2812 @ 3081 @ 8945 # 18 # 3273 @ 222 # 6452 # 5838

A:
6506
****