C11112331312111112111133133313331333133313331333133313231333131331221   >>    C1111233131211111211113313331333133313331333133313331323133313133122   <<    C11112331312111112111133133313331333133313331333133313231333131331223   >>      C11112331312111112111133133313331333133313331333133313231333131331222   >>