Tabla del -999
| -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 | 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 |