ttg tti ttn tto ttr ttt ttu tty tuc tud tue tug tui tun tuo tur tut tuu tuy tyc tyd tye tyg tyn tyo tyr tyt ucc ucd uce ucg uci ucn uco ucr uct ucu udc udd ude udg udi udn udo udr udt udu uec ued uee ueg uei uen uer uet uey ugc uge ugg ugi ugn ugo ugr ugt ugu uic uid uie uig uii uin uio uir uit uiu un- unc und une ung uni unn uno unr unt unu uny uoc uod uoe uog uon uoo uor uot ur- urc urd ure urg uri urn uro urr urt uru ury utc utd ute uti utn uto utr utt utu uty uuc uue uug uun uur uut uuu uyc uyi uyo uyu ycc ycd yce yci yco ycu ycy yde ydg ydn ydo ydt ydy yec yed yee yeg yei yen yeo yer yet yey ygc ygo yid yie yig yii yin yio yir yit ynd yne yng ynn ynu yny yoc yod yoe yog yoi yon yoo yor yot you yoy yrc yre yrg yrn yro yrt yru ytc ytd yte ytn yto ytr ytt ytu yud yue yug yui yun yuo yur yut yuu yuy yyc yye yyg yyt yyu yyy