9 steps
wm4399wm4399
signature
1213→2223
rule
{{{1, 2, 3}, {4, 2}} -> {{4, 2, 2}, {2, 5, 6}, {5, 1}, {5, 4}}}
{{{1, 2, 3}, {4, 2}} -> {{4, 2, 2}, {2, 5, 6}, {5, 1}, {5, 4}}}
make editable copy
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