
9 steps
wm5468wm5468
signature
22→42
rule

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