C111112111133131121133133313331333133313331323133313331312223321   >>    C11111211113313112113313331333133313331333132313331333131222332   <<    C111112111133131121133133313331333133313331323133313331312223323   >>      C111112111133131121133133313331333133313331323133313331312223322   >>