50 steps
wm5122wm5122
signature
23→43
rule
{{{1, 2, 2}, {3, 4, 5}} -> {{5, 6, 6}, {7, 2, 5}, {8, 2, 6}, {2, 1, 3}}}
{{{1, 2, 2}, {3, 4, 5}} -> {{5, 6, 6}, {7, 2, 5}, {8, 2, 6}, {2, 1, 3}}}
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