Please explain. The horizontal pressure is two or three points, five squares and six squares are inserted, and the seven corners are 889, with a small change under the point.

A horizontal number is 1, a vertical number is 2, one point and one stroke is 3, the intersection of two strokes is 4, when one stroke crosses two or more strokes vertically, it is 5, when it is a square, it is 6, when it is an angle, it is 8, when it is a figure of eight, it is 9, and when it is a horizontal dot, it is 0.