C111123313121111121111331333133313331323232133313331333132233133313222121   >>    C11112331312111112111133133313331333132323213331333133313223313331322212   <<    C111123313121111121111331333133313331323232133313331333132233133313222123   >>      C111123313121111121111331333133313331323232133313331333132233133313222122   >>