![](assets/icon.png)
3 steps
wm2277wm2277
signature
12→42
rule
![](assets/rule.png)
{{{1, 2}} -> {{3, 4}, {3, 1}, {4, 1}, {2, 4}}}
{{{1, 2}} -> {{3, 4}, {3, 1}, {4, 1}, {2, 4}}}