item, index, number, start, end
1, 0, 1, 1, 0
2, 1, 2, 0, 0
3, 2, 3, 0, 0
4, 3, 4, 0, 0
5, 4, 5, 0, 0
6, 5, 6, 0, 0
7, 6, 7, 0, 0
8, 7, 8, 0, 0
9, 8, 9, 0, 1