| 999 | X | 1 | = | 999 |
| 999 | X | 2 | = | 1998 |
| 999 | X | 3 | = | 2997 |
| 999 | X | 4 | = | 3996 |
| 999 | X | 5 | = | 4995 |
| 999 | X | 6 | = | 5994 |
| 999 | X | 7 | = | 6993 |
| 999 | X | 8 | = | 7992 |
| 999 | X | 9 | = | 8991 |
| 999 | X | 10 | = | 9990 |
| 999 | X | 11 | = | 10989 |
| 999 | X | 12 | = | 11988 |
| 999 | X | 13 | = | 12987 |
| 999 | X | 14 | = | 13986 |
| 999 | X | 15 | = | 14985 |
| 999 | X | 16 | = | 15984 |
| 999 | X | 17 | = | 16983 |
| 999 | X | 18 | = | 17982 |
| 999 | X | 19 | = | 18981 |
| 999 | X | 20 | = | 19980 |