The conversation between human and AI assistant.
[|Human|] Arrange the following five numbers in ascending order: 7, 4, 8, 1, 9.
[|AI|] The numbers 7, 4, 8, 1, and 9 arranged in ascending order are: 1, 4, 7, 8, 9.
[|Human|] 
Arrange the following five numbers in ascending order: 7, 4, 8, 1, 9.