C11112331312111112111133133313331333132323213331333131333131213231333222311   >>    C1111233131211111211113313331333133313232321333133313133313121323133322231   <<    C11112331312111112111133133313331333132323213331333131333131213231333222313   >>      C11112331312111112111133133313331333132323213331333131333131213231333222312   >>