| x | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||
| 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |||||||||||
| + | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |