C111123313121111121111331333133313331323232133112111113232331221   >>    C11112331312111112111133133313331333132323213311211111323233122   <<    C111123313121111121111331333133313331323232133112111113232331223   >>      C111123313121111121111331333133313331323232133112111113232331222   >>