16 steps wm5626wm5626 signature 23→33 rule {{{1, 2, 3}, {3, 4, 5}} -> {{4, 2, 2}, {2, 1, 6}, {7, 1, 3}}} {{{1, 2, 3}, {3, 4, 5}} -> {{4, 2, 2}, {2, 1, 6}, {7, 1, 3}}}