The capital of the two characters "stairs" is next to the character "木", and they must be written "left" or "right" in the "tian" grid.

The capital of the two characters for stairs is next to the character wood. In the Tian character grid, they must be written left (root) and right (shape).

Lou stroke order: 一丨ノ丶ノ一丨ノ丶フノ一

See the picture for the correct writing method in Tian character grid: