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: 9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638

A: -1315
****
Q: 8158 @ 1325 @ 395 # 4068 @ 4226 @ 7713 @ 8368 # 3297

A: 22820
****
Q: 8494 # 6717 @ 4374 @ 3102 # 7030 @ 2271

A:
4494
****