C111112111133131121133133313331333133313121111331333132221222121   >>    C11111211113313112113313331333133313331312111133133313222122212   <<    C111112111133131121133133313331333133313121111331333132221222123   >>      C111112111133131121133133313331333133313121111331333132221222122   >>