198 steps wm4374wm4374 signature 23→33 rule {{{1, 2, 2}, {1, 3, 4}} -> {{3, 5, 5}, {1, 5, 3}, {5, 2, 6}}} {{{1, 2, 2}, {1, 3, 4}} -> {{3, 5, 5}, {1, 5, 3}, {5, 2, 6}}}