C111112111133131121133133313331333133313121133133313331322331321   >>    C11111211113313112113313331333133313331312113313331333132233132   <<    C111112111133131121133133313331333133313121133133313331322331323   >>      C111112111133131121133133313331333133313121133133313331322331322   >>