C11112331312111112111133133313331333132323133313331311331323232131133121   >>    C1111233131211111211113313331333133313232313331333131133132323213113312   <<    C11112331312111112111133133313331333132323133313331311331323232131133123   >>      C11112331312111112111133133313331333132323133313331311331323232131133122   >>