C11112331312111112111133133313331333132323133313331311331311331323223231   >>    C1111233131211111211113313331333133313232313331333131133131133132322323   <<    C11112331312111112111133133313331333132323133313331311331311331323223233   >>      C11112331312111112111133133313331333132323133313331311331311331323223232   >>