C111123313121111121111331333133313331333133313121111113313331333132322123223311   >>    C11112331312111112111133133313331333133313331312111111331333133313232212322331   <<    C111123313121111121111331333133313331333133313121111113313331333132322123223313   >>      C111123313121111121111331333133313331333133313121111113313331333132322123223312   >>