C111123313121111121111331333133313331333131233133313311213322331322122321   >>    C11112331312111112111133133313331333133313123313331331121332233132212232   <<    C111123313121111121111331333133313331333131233133313311213322331322122323   >>      C111123313121111121111331333133313331333131233133313311213322331322122322   >>