31 steps wm4979wm4979 signature 23→33 rule {{{1, 1, 2}, {3, 4, 5}} -> {{3, 3, 4}, {2, 4, 6}, {5, 6, 7}}} {{{1, 1, 2}, {3, 4, 5}} -> {{3, 3, 4}, {2, 4, 6}, {5, 6, 7}}}