99 steps wm8529wm8529 signature 23→43 rule {{{1, 2, 2}, {3, 4, 2}} -> {{2, 5, 5}, {5, 3, 2}, {5, 4, 6}, {7, 4, 5}}} {{{1, 2, 2}, {3, 4, 2}} -> {{2, 5, 5}, {5, 3, 2}, {5, 4, 6}, {7, 4, 5}}}