C111112111133131121133133313331333133313331323133313331312212231   >>    C11111211113313112113313331333133313331333132313331333131221223   <<    C111112111133131121133133313331333133313331323133313331312212233   >>      C111112111133131121133133313331333133313331323133313331312212232   >>