
9 steps
wm8367wm8367
signature
22→42
rule

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