C111123313121111121111331333133313331333133313331122112313331221   >>    C11112331312111112111133133313331333133313331333112211231333122   <<    C111123313121111121111331333133313331333133313331122112313331223   >>      C111123313121111121111331333133313331333133313331122112313331222   >>