
8 steps
wm4335wm4335
signature
22→42
rule

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