55 steps wm9354wm9354 signature 23→33 rule {{{1, 2, 2}, {3, 4, 5}} -> {{1, 4, 4}, {6, 1, 3}, {5, 7, 6}}} {{{1, 2, 2}, {3, 4, 5}} -> {{1, 4, 4}, {6, 1, 3}, {5, 7, 6}}}