1. Take out a long column and place it in the position and direction shown below.
2. Take the second and first long columns and assemble them in the order shown in the figure.
3. Take the last long column and assemble it into the middle column as shown in the figure.
4. Then take a short column and insert it under the cross center column.
5. Insert the short column into the right side of the cross center column as shown in the figure.
6. Take a short column and two other short columns to form the shape as shown in the figure.
7. Insert another short column into the left side of the rotated center column.
8. Insert a short column to the right of the center.
9. Deflect the short column at the top of the plan according to the above figure, and the deflection effect is shown in the figure.
10. Install the last short column, and then rotate it 90 degrees to complete the insertion of the last short column.