C111123313121111121111331333133313331333112221211111211111213112233121   >>    C11112331312111112111133133313331333133311222121111121111121311223312   <<    C111123313121111121111331333133313331333112221211111211111213112233123   >>      C111123313121111121111331333133313331333112221211111211111213112233122   >>