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198 steps
wm3181wm3181
signature
23→33
rule
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{{{1, 2, 1}, {3, 2, 4}} -> {{2, 3, 2}, {5, 2, 4}, {1, 5, 2}}}
{{{1, 2, 1}, {3, 2, 4}} -> {{2, 3, 2}, {5, 2, 4}, {1, 5, 2}}}