![](assets/icon.png)
7 steps
wm2215wm2215
signature
22→42
rule
![](assets/rule.png)
{{{1, 2}, {2, 3}} -> {{4, 4}, {3, 4}, {3, 2}, {1, 4}}}
{{{1, 2}, {2, 3}} -> {{4, 4}, {3, 4}, {3, 2}, {1, 4}}}