C111112111133131121133133313331333133313331323133313331333133313223312112331   >>    C11111211113313112113313331333133313331333132313331333133313331322331211233   <<    C111112111133131121133133313331333133313331323133313331333133313223312112333   >>      C111112111133131121133133313331333133313331323133313331333133313223312112332   >>