I can put the '0' at the beginning of the first row to represent what you're looking for!
| (0) | 1 | 2 | 3 | 4 | 5 | 6 | = |
|--|---|----|-----|-|--|---|---|
| 1 | 5 | 8 | 7 | 8 | 7 | 5 | 10 |
| 2 | 6 | 7 | 6 | 7 | 6 | 6 | 7 |
| 3 | 7 | 6 | 5 | 6 | 5 | 7 | 4 |
| 4 | 8 | 5 | 4 | 5 | 4 | 8 | 1 |