-ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aag aai aak aao aat aau ab- aba abb abc abe abf abg abi abk abo abt abu ac- aca acb acc ace acf acg aci ack aco act acu aea aeb aec aee aef aeg aei aek aeo aet aeu af- afa afb afc afe aff afg afi afk afo aft afu ag- aga agb agc age agf agg agi agk ago agt agu ai- aia aib aic aie aif aig aii aik aio ait aiu aka akb akc ake akg aki akk ako aku aoa aob aoc aoe aof aog aoi aok aoo aot aou at- ata atb atc ate atf atg ati ato att atu au- aua aub auc aue auf aug aui auk auo aut b-u baa bab bac bae baf bag bai bak bao bat bau bba bbb bbc bbe bbf bbg bbi bbk bbo bbt bbu bca bcb bcc bce bcf bcg bci bck bco bct bcu be- bea beb bec bee bef beg bei bek beo bet beu bfa bfb bfc bfe bff bfg bfi bfo bft bfu bga bgb bgc bge bgf bgg bgi bgk bgo bgt bgu bi- bia bib bic bie bif big bii bik bio bit biu bka bkb bkc bke bkf bkg bkk bko bkt boa bob boc boe bof bog boi bok boo bot bou bta btb btc bte btf btg bti btk bto btt btu bua bub buc bue buf bug bui buk buo but buu c-- caa cab cac cae caf cag cai cak cao cat cau cba cbb cbc cbe cbf cbg cbi cbk cbo cbt cbu cca ccb ccc cce ccf ccg cci cck cco cct ccu ce- cea ceb cec cee cef ceg cei cek ceo cet ceu cfa cfb cfc cfe cff cfg cfi cfk cfo cft cfu cga cgb cgc cge cgg cgi cgo cgt cgu ci- cia cib cic cie cif cig cii cik cio cit ciu cka ckb ckc cki cko ckt co- coa cob coc coe cof cog coi cok coo cot cou cta ctb ctc cte ctf ctg cti ctk cto ctt ctu cua cub cuc cue cuf cug cui cuk cuo cut cuu eaa eab eac eae eaf eag eai eak eao eat eau eba ebb ebc ebe ebf ebg ebi ebk ebo ebt ebu ec- eca ecb ecc ece ecf ecg eci eck eco ect ecu eea eeb eec eee eef eeg eek eeo eet ef- efa efb efc efe eff efg efi efo eft ega egb egc ege egf egg egi ego egt egu eia eib eic eie eif eig eii eik eio eit eiu eka ekb ekc eke ekf ekg eki eko ekt eku eo- eoa eob eoc eoe eof eog eoi eok eoo eot eou eta etb etc ete etf etg eti etk eto ett etu eu- eua eub euc eue euf eug eui eut faa fab fac fae faf fag fai fak fao fat fau fba fbb fbc fbe fbf fbg fbi fbk fbo fbt fbu fca fcb fcc fce fcf fcg fci fck fco fct fcu fea feb fec fee fef feg fei fek feo fet feu ffa ffc ffe fff ffg ffi ffk ffo fft ffu fga fgb fgc fge fgf fgg fgi fgt fia fib fic fie fif fig fii fik fit fiu fka fkb fkc fkf fkg fki fkk fkt foa fob foc foe fof fog foi fok foo fot fou fta ftb ftc fte ftf ftg fti ftk fto ftt ftu fua fub fue fuf fug fui fuk fuo fut fuu gaa gab gac gae gaf gag gai gak gao gat gau gba gbc gbe gbf gbg gbi gbk gbo gbt gbu gca gcb gcc gce gcf gcg gci gck gco gct gcu ge- gea geb gec gee gef geg gei gek geo get geu gfa gfb gfc gfe gff gfi gfk gfo gft gga ggb ggc ggg ggi ggo ggt ggu gia gib gic gie gif gig gii gik gio git giu gka gkb gko gkt goa gob goc goe gof gog goi gok goo got gou gta gtb gtc gte gtf gtg gti gtk gto gtt gtu gu- gua gub guc gue guf gug gui guk guo gut guu i-f ia- iaa iab iac iae iaf iag iai iao iat iau iba ibb ibc ibe ibf ibg ibi ibk ibo ibt ibu ica icb icc ice icf icg ici ick ico ict icu ie- iea iec iee ief ieg iei iek iet ifa ifb ifc ife iff ifg ifi ifo ift ifu iga igb igc ige igf igg igi igk igo igt igu iia iib iic iie iif iii iio iit iiu ika ikb ikc ike ikf iki ikk iko ikt iku io- ioa iob ioc ioe iof iog ioi ioo iot iou ita itb itc ite itf itg iti itk ito itt itu iu- iua iub iuc iue iug iui iut k-t ka- kaa kab kac kae kaf kag kai kak kao kat kau kba kbb kbc kbe kbf kbi kbk kbo kbu kca kcb kcc kce kcg kci kck kct kcu ke- kea keb kec kee kef keg kei kek keo ket kfa kfc kff kfg kfi kfo kfu kga kgb kgc kgf kgi kgo kgu kia kib kic kie kif kig kii kik kio kit kiu kkb kkc kke kki kkk kkt kku koa kob koc koe kof kog koi kok koo kot kou kta ktb ktc kte ktf ktg ktk kto ktt ktu kub kuc kue kug kui kuk kut kuu o-i oaa oab oac oae oaf oag oai oak oao oat oau ob- oba obb obc obe obf obg obi obk obo obt obu oc- oca ocb occ ocf ocg oci ock oco oct ocu oea oeb oec oee oef oeg oei oeo oet of- ofa ofb ofc ofe off ofg ofi ofo oft ofu oga ogc oge ogf ogg ogi ogo ogt oia oib oic oie oif oii oik oio oit oiu oka okb okc oke