12 steps wm9173wm9173 signature 23→33 rule {{{1, 2, 3}, {4, 5, 3}} -> {{3, 1, 5}, {1, 6, 5}, {3, 6, 4}}} {{{1, 2, 3}, {4, 5, 3}} -> {{3, 1, 5}, {1, 6, 5}, {3, 6, 4}}}