C111112111133131121133133313331333133313331323133313331333133313223212323221   >>    C11111211113313112113313331333133313331333132313331333133313331322321232322   <<    C111112111133131121133133313331333133313331323133313331333133313223212323223   >>      C111112111133131121133133313331333133313331323133313331333133313223212323222   >>