C111112111133131121133133313331333133313331323133313331333133313221223312321   >>    C11111211113313112113313331333133313331333132313331333133313331322122331232   <<    C111112111133131121133133313331333133313331323133313331333133313221223312323   >>      C111112111133131121133133313331333133313331323133313331333133313221223312322   >>