C111112111133131121133133313331333133313331323133313331333131122233321   >>    C11111211113313112113313331333133313331333132313331333133313112223332   <<    C111112111133131121133133313331333133313331323133313331333131122233323   >>      C111112111133131121133133313331333133313331323133313331333131122233322   >>