C11112331312111112111133133313331333132323133313331333133313113313233313221131   >>    C1111233131211111211113313331333133313232313331333133313331311331323331322113   <<    C11112331312111112111133133313331333132323133313331333133313113313233313221133   >>      C11112331312111112111133133313331333132323133313331333133313113313233313221132   >>