C3213322333133313113313221211113313331333131111331322222122233211   >>    C321332233313331311331322121111331333133313111133132222212223321   <<    C3213322333133313113313221211113313331333131111331322222122233213   >>      C3213322333133313113313221211113313331333131111331322222122233212   >>