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

2367 @ 4877 @ 8467 @ 5488 # 987 # 8899
11313

9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638
-1315

9746 # 6804 @ 5800 @ 8118 @ 2515 @ 1083 # 8754

11704