![](assets/icon.png)
3 steps
wm1526wm1526
signature
12→42
rule
![](assets/rule.png)
{{{1, 2}} -> {{3, 1}, {3, 2}, {1, 4}, {4, 2}}}
{{{1, 2}} -> {{3, 1}, {3, 2}, {1, 4}, {4, 2}}}