
8 steps
wm8843wm8843
signature
22→42
rule

{{{1, 2}, {2, 3}} -> {{3, 1}, {3, 4}, {1, 4}, {3, 2}}}
{{{1, 2}, {2, 3}} -> {{3, 1}, {3, 4}, {1, 4}, {3, 2}}}