C11112331312111112111133133313331333132323133313331333133213131221   >>    C1111233131211111211113313331333133313232313331333133313321313122   <<    C11112331312111112111133133313331333132323133313331333133213131223   >>      C11112331312111112111133133313331333132323133313331333133213131222   >>