
7 steps
wm8626wm8626
signature
22→42
rule

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