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