tyn tyo tyr tyt ucc uce ucf ucg uci ucn uco ucr uct ucu uec uee uef ueg uei uen uer uet uey ufc ufe uff ufg ufi ufn ufo ufr uft ufu ugc uge ugf ugg ugi ugn ugo ugr ugt ugu uic uie uif uig uii uin uio uir uit uiu un- unc une unf ung uni unn uno unr unt unu uny uoc uoe uog uon uoo uor uot ur- urc ure urf urg uri urn uro urr urt uru ury utc ute utf uti utn uto utr utt utu uty uuc uue uug uun uur uut uuu uyc uyi uyo uyu ycc yce ycf yci yco ycu ycy yec yee yef yeg yei yen yeo yer yet yey yfc yfe yff yfr yft yfu ygc ygo yie yif yig yii yin yio yir yit yne yng ynn ynu yny yoc yoe yof yog yoi yon yoo yor yot you yoy yrc yre yrf yrg yrn yro yrt yru ytc yte ytf ytn yto ytr ytt ytu yue yug yui yun yuo yur yut yuu yuy yyc yye yyf yyg yyt yyu yyy