## Seedy Affair

Step 1:
```
0 ?? 0 0 0 0
  17         → 2012886
  18         → 2012885
  19         → 2012884
```

Step 2
```
0 0 ??  0 0 0
    128       → 2012886
    64        → 2012885
    0         → 2012884
```