
6 steps
wm14338wm14338
signature
22→42
rule

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