tni tnl tnm tnn tnt tnx tta ttb tte ttf tti ttl ttm ttn ttt ttu ttx tua tub tue tuf tui tul tum tun tut tuu tux txe txf txi txl txn txt txu ua- uaa uab uae uaf uai ual uam uan uat uau uba ubb ube ubf ubi ubl ubn ubt ubu ubx uea ueb uee uef uei uel uem uen uet ufa ufe uff ufi ufl ufm ufn uft ufu ufx uia uib uie uif uii uil uim uin uit uiu ula ulb ule ulf uli ull ulm uln ult ulu um- uma umb ume umf umi uml umm umn umt umu un- una unb une unf uni unl unm unn unt unu unx uta utb ute utf uti utl utm utn utt utu utx uua uue uum uun uut uuu uxb uxf uxt uxu xaa xaf xal xam xan xat xau xbe xbl xbx xee xel xem xen xet xeu xex xfa xfe xfl xfm xfn xft xfx xia xie xii xin xit xiu xix xla xlb xlf xli xlm xlt xma xmf xmi xml xmm xmt xmu xmx xna xnu xtf xti xtm xtx xue xui xul xun xxi xxl xxx