1-r0 2-r0 3-r0
4-r0 5-r0 6-r0
7-r0 8-r0 9-r0
3-r270 8-r0 7-r270
6-r90 5-r0 4-r90
9-r0 2-r0 1-r270
3-r270 6-r270 1-r0
4-r180 7-r0 2-r0
5-r180 8-r0 9-r0