4 steps
wm6423wm6423
signature
13→43
rule
{{{1, 2, 1}} -> {{3, 3, 3}, {1, 3, 3}, {1, 2, 2}, {2, 3, 1}}}
{{{1, 2, 1}} -> {{3, 3, 3}, {1, 3, 3}, {1, 2, 2}, {2, 3, 1}}}
make editable copy
download notebook