-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aag aai aan aao aar aat aau ab- aba abb abc abe abg abi abn abo abr abt abu ac- aca acb acc ace acg aci acn aco acr act acu aea aeb aec aee aeg aei aen aeo aer aet aeu ag- aga agb agc age agg agi agn ago agr agt agu ai- aia aib aic aie aig aii ain aio air ait aiu an- ana anb anc ane ang ani ann ano anr ant anu aoa aob aoc aoe aog aoi aon aoo aor aot aou ar- ara arb arc are arg ari arn aro arr art aru at- ata atb atc ate atg ati atn ato atr att atu au- aua aub auc aue aug aui aun auo aur aut b-u baa bab bac bae bag bai ban bao bar bat bau bba bbb bbc bbe bbg bbi bbn bbo bbr bbt bbu bca bcb bcc bce bcg bci bcn bco bcr bct bcu be- bea beb bec bee beg bei ben beo ber bet beu bga bgb bgc bge bgg bgi bgn bgo bgr bgt bgu bi- bia bib bic bie big bii bin bio bir bit biu bna bnb bnc bne bng bni bnn bno bnr bnt bnu boa bob boc boe bog boi bon boo bor bot bou bra brb bre brg bri brn bro brr brt bru bta btb btc bte btg bti btn bto btr btt btu bua bub buc bue bug bui bun buo bur but buu c-- caa cab cac cae cag cai can cao car cat cau cba cbb cbc cbe cbg cbi cbn cbo cbr cbt cbu cca ccb ccc cce ccg cci ccn cco ccr cct ccu ce- cea ceb cec cee ceg cei cen ceo cer cet ceu cga cgb cgc cge cgg cgi cgn cgo cgr cgt cgu ci- cia cib cic cie cig cii cin cio cir cit ciu cn- cna cnb cnc cne cng cni cnn cno cnr cnt cnu co- coa cob coc coe cog coi con coo cor cot cou cra crb crc cre crg cri crn cro crr crt cru cta ctb ctc cte ctg cti ctn cto ctr ctt ctu cua cub cuc cue cug cui cun cuo cur cut cuu eaa eab eac eae eag eai ean eao ear eat eau eba ebb ebc ebe ebg ebi ebn ebo ebr ebt ebu ec- eca ecb ecc ece ecg eci ecn eco ecr ect ecu eea eeb eec eee eeg een eeo eer eet ega egb egc ege egg egi egn ego egr egt egu eia eib eic eie eig eii ein eio eir eit eiu en- ena enb enc ene eng eni enn eno enr ent enu eo- eoa eob eoc eoe eog eoi eon eoo eor eot eou era erb erc ere erg eri ern ero err ert eru eta etb etc ete etg eti etn eto etr ett etu eu- eua eub euc eue eug eui eun eur eut gaa gab gac gae gag gai gan gao gar gat gau gba gbc gbe gbg gbi gbn gbo gbr gbt gbu gca gcb gcc gce gcg gci gcn gco gcr gct gcu ge- gea geb gec gee geg gei gen geo ger get geu gga ggb ggc ggg ggi ggn ggo ggr ggt ggu gia gib gic gie gig gii gin gio gir git giu gna gnb gnc gne gni gnn gno gnr gnt gnu goa gob goc goe gog goi gon goo gor got gou gra grb grc gre grg gri grn gro grr grt gru gta gtb gtc gte gtg gti gtn gto gtr gtt gtu gu- gua gub guc gue gug gui gun guo gur gut guu ia- iaa iab iac iae iag iai ian iao iar iat iau iba ibb ibc ibe ibg ibi ibn ibo ibr ibt ibu ica icb icc ice icg ici icn ico icr ict icu ie- iea iec iee ieg iei ien ier iet iga igb igc ige igg igi ign igo igr igt igu iia iib iic iie iii iin iio iir iit iiu in- ina inb inc ine ing ini inn ino inr int inu io- ioa iob ioc ioe iog ioi ion ioo ior iot iou ir- ira irb irc ire irg iri irn iro irr irt iru ita itb itc ite itg iti itn ito itt itu iu- iua iub iuc iue iug iui iur iut n-i naa nab nac nae nag nai nan nao nar nat nau nba nbb nbc nbe nbg nbi nbn nbo nbr nbt nbu nca ncb ncc nce ncg nci ncn nco ncr nct ncu ne- nea neb nec nee neg nei nen neo ner net neu nga ngb ngc nge ngg ngi ngn ngo ngt ngu nia nib nic nie nig nii nin nio nir nit niu nna nnb nnc nne nng nni nnn nno nnt nnu no- noa nob noc noe nog noi non noo nor not nou nra nrb nrc nre nrg nri nrn nro nrr nrt nru nta ntb ntc nte ntg nti ntn nto ntr ntt ntu nua nub nuc nue nug nui nun nuo nur nut nuu o-i oaa oab oac oae oag oai oan oao oar oat oau ob- oba obb obc obe obg obi obn obo obr obt obu oc- oca ocb occ ocg oci ocn oco ocr oct ocu oea oeb oec oee oeg oei oen oeo oer oet oga ogc oge ogg ogi ogn ogo ogt oia oib oic oie oii oin oio oir oit oiu on- ona onb onc one ong oni onn ono onr ont onu oo- ooa oob ooc oog ooi oon ooo oor oot or- ora orb orc ore org ori orn oro orr ort oru ot- ota otb otc ote otg oti otn oto otr ott otu ou- oua ouc oue oui oun ouo our out ra- raa rab rac rae rag rai ran rao rar rat rau rba rbb rbc rbe