![](assets/icon.png)
3 steps
wm4321wm4321
signature
12→42
rule
![](assets/rule.png)
{{{1, 2}} -> {{1, 2}, {1, 3}, {2, 3}, {3, 4}}}
{{{1, 2}} -> {{1, 2}, {1, 3}, {2, 3}, {3, 4}}}