C111112111133131121133133313331333133313331323133313331333131211113313223321221   >>    C11111211113313112113313331333133313331333132313331333133313121111331322332122   <<    C111112111133131121133133313331333133313331323133313331333131211113313223321223   >>      C111112111133131121133133313331333133313331323133313331333131211113313223321222   >>