C111123313121111121111331333133313331333131233133313113313331323211311   >>    C11112331312111112111133133313331333133313123313331311331333132321131   <<    C111123313121111121111331333133313331333131233133313113313331323211313   >>      C111123313121111121111331333133313331333131233133313113313331323211312   >>