a-a a-c a-t aaa aac aae aaf aak aan aao aat aau aax ac- aca acc ace acf ack acn aco act acu acx aea aec aee aef aek aen aeo aet aeu aex af- afa afc afe aff afk afn afo aft afu afx aka akc ake akk akn ako aku an- ana anc ane anf ank ann ano ant anu anx aoa aoc aoe aof aok aon aoo aot aou aox at- ata atc ate atf atn ato att atu atx au- aua auc aue auf auk aun auo aut aux ax- axa axe axk axn axo axt axx c-- caa cac cae caf cak can cao cat cau cax cca ccc cce ccf cck ccn cco cct ccu ccx ce- cea cec cee cef cek cen ceo cet ceu cex cfa cfc cfe cff cfk cfn cfo cft cfu cfx cka ckc cko ckt ckx cn- cna cnc cne cnf cnn cno cnt cnu cnx co- coa coc coe cof cok con coo cot cou cox cta ctc cte ctf ctk ctn cto ctt ctu ctx cua cuc cue cuf cuk cun cuo cut cuu cxc cxf cxk cxo cxt cxx eaa eac eae eaf eak ean eao eat eau eax ec- eca ecc ece ecf eck ecn eco ect ecu ecx eea eec eee eef eek een eeo eet eex ef- efa efc efe eff efo eft efx eka ekc eke ekf eko ekt eku en- ena enc ene enf enk enn eno ent enu eo- eoa eoc eoe eof eok eon eoo eot eou eta etc ete etf etk etn eto ett etu etx eu- eua euc eue euf eun eut eux ex- exa exc exe exo ext exu exx faa fac fae faf fak fan fao fat fau fax fca fcc fce fcf fck fcn fco fct fcu fcx fea fec fee fef fek fen feo fet feu fex ffa ffc ffe fff ffk ffn ffo fft ffu ffx fka fkc fkf fkk fkt fna fnc fne fnf fnk fnn fnt fnu fnx foa foc foe fof fok fon foo fot fou fox fta ftc fte ftf ftk ftn fto ftt ftu ftx fua fue fuf fuk fun fuo fut fuu fux fxe fxt fxu fxx k-t ka- kaa kac kae kaf kak kan kao kat kau kax kca kcc kce kck kcn kct kcu kcx ke- kea kec kee kef kek ken keo ket kex kfa kfc kff kfo kfu kfx kkc kke kkk kkn kkt kku kn- kna knc kne knf knk knn kno knt knu knx koa koc koe kof kok kon koo kot kou kta ktc kte ktf ktk ktn kto ktt ktu kuc kue kuk kun kut kuu kxo naa nac nae naf nak nan nao nat nau nax nca ncc nce ncf nck ncn nco nct ncu ncx ne- nea nec nee nef nek nen neo net neu nex nfa nfc nfe nff nfk nfn nfo nft nfu nka nkc nke nkf nkk nkn nko nkt nku nna nnc nne nnf nnk nnn nno nnt nnu no- noa noc noe nof nok non noo not nou nox nta ntc nte ntf ntk ntn nto ntt ntu ntx nua nuc nue nuk nun nuo nut nuu nux nxc nxt oaa oac oae oaf oak oan oao oat oau oax oc- oca occ ocf ock ocn oco oct ocu ocx oea oec oee oef oen oeo oet oex of- ofa ofc ofe off ofn ofo oft ofu ofx oka okc oke okk oko oku on- ona onc one onf onk onn ono ont onu onx oo- ooa ooc oof ook oon ooo oot oox ot- ota otc ote otf otk otn oto ott otu ou- oua ouc oue ouf ouk oun ouo out ox- oxa oxc oxf oxn oxo oxt oxx t-x taa tac tae taf tak tan tao tat tau tax tca tcc tce tcf tck tcn tco tct tcu tcx te- tea tec tee tef tek ten teo tet teu tex tfa tfc tfe tff tfk tfn tfo tft tfu tfx tka tkc tke tkk tko tkt tna tnc tne tnf tnk tnn tno tnt tnx to- toa toc toe tof tok ton too tot tou tox tta ttc tte ttf ttk ttn tto ttt ttu ttx tua tuc tue tuf tuk tun tuo tut tuu tux txe txf txk txn txt txu ua- uaa uac uae uaf uak uan uao uat uau uca ucc uce ucf uck ucn uco uct ucu uea uec uee uef uen uet ufa ufc ufe uff ufn ufo uft ufu ufx uka ukc uke ukf ukk ukn uku un- una unc une unf unk unn uno unt unu unx uoa uoc uoe uok uon uoo uot uox uta utc ute utf utk utn uto utt utu utx uua uuc uue uun uut uuu uxc uxf uxo uxt uxu xaa xac xaf xak xan xat xau xcf xcx xee xen xet xeu xex xfa xfe xfn xft xfx xke xna xnc xnk xno xnu xoa xoc xof xok xon xoo xot xox xtc xtf xtx xue xun xxo xxx