| Top |  |  |  |  | 
| top to bottom. | ||
| bottom to top. | ||
| top to bottom, mirrored. | ||
| bottom to top, mirrored. | ||
| left to right. | ||
| right to left. | ||
| left to right, mirrored. | ||
| right to left, mirrored. | ||
| top left to bottom right. | ||
| bottom right to top left. | ||
| top left to bottom right, mirrored. | ||
| bottom right to top left, mirrored. | ||
| top right to bottom left. | ||
| bottom left to top right. | ||
| top right to bottom left, mirrored. | ||
| bottom left to top right, mirrored. | ||
| maximum value, should not occur. } ; |