7 steps
wm4567wm4567
signature
22→42
rule
{{{1, 2}, {1, 3}} -> {{4, 4}, {4, 1}, {2, 4}, {3, 4}}}
{{{1, 2}, {1, 3}} -> {{4, 4}, {4, 1}, {2, 4}, {3, 4}}}
make editable copy
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