![](assets/icon.png)
8 steps
wm2884wm2884
signature
22→42
rule
![](assets/rule.png)
{{{1, 2}, {2, 3}} -> {{2, 4}, {2, 1}, {4, 1}, {4, 3}}}
{{{1, 2}, {2, 3}} -> {{2, 4}, {2, 1}, {4, 1}, {4, 3}}}