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

8782 @ 1837 # 6954
3665

8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422
4929

9665 # 5624 # 7452 @ 9729 @ 4559

10877