![](assets/icon.png)
3 steps
wm9864wm9864
signature
12→42
rule
![](assets/rule.png)
{{{1, 2}} -> {{2, 3}, {2, 3}, {3, 2}, {3, 1}}}
{{{1, 2}} -> {{2, 3}, {2, 3}, {3, 2}, {3, 1}}}