
8 steps
wm7936wm7936
signature
22→42
rule

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