C11112331312111112111133132313331333133313233313331312111133133313223332332311   >>    C1111233131211111211113313231333133313331323331333131211113313331322333233231   <<    C11112331312111112111133132313331333133313233313331312111133133313223332332313   >>      C11112331312111112111133132313331333133313233313331312111133133313223332332312   >>