18 steps wm4525wm4525 signature 23→33 rule {{{1, 2, 3}, {4, 3, 5}} -> {{6, 5, 6}, {6, 4, 3}, {2, 1, 6}}} {{{1, 2, 3}, {4, 3, 5}} -> {{6, 5, 6}, {6, 4, 3}, {2, 1, 6}}}