C11112331312111112111133133313331333132322321333131133131111331313311   >>    C1111233131211111211113313331333133313232232133313113313111133131331   <<    C11112331312111112111133133313331333132322321333131133131111331313313   >>      C11112331312111112111133133313331333132322321333131133131111331313312   >>