![](assets/icon.png)
14 steps
wm4449wm4449
signature
22→32
rule
![](assets/rule.png)
{{{1, 2}, {3, 2}} -> {{1, 3}, {2, 3}, {4, 3}}}
{{{1, 2}, {3, 2}} -> {{1, 3}, {2, 3}, {4, 3}}}