-ic a-a a-b a-c a-i a-t aaa aab aac aag aai aan aao aar aas aat aau ab- aba abb abc abg abi abn abo abr abs abt abu ac- aca acb acc acg aci acn aco acr acs act acu ag- aga agb agc agg agi agn ago agr ags agt agu ai- aia aib aic aig aii ain aio air ais ait aiu an- ana anb anc ang ani ann ano anr ans ant anu aoa aob aoc aog aoi aon aoo aor aos aot aou ar- ara arb arc arg ari arn aro arr ars art aru as- asa asb asc asg asi asn aso asr ass ast asu at- ata atb atc atg ati atn ato atr ats att atu au- aua aub auc aug aui aun auo aur aus aut b-u baa bab bac bag bai ban bao bar bas bat bau bba bbb bbc bbg bbi bbn bbo bbr bbs bbt bbu bca bcb bcc bcg bci bcn bco bcr bcs bct bcu bga bgb bgc bgg bgi bgn bgo bgr bgs bgt bgu bi- bia bib bic big bii bin bio bir bis bit biu bna bnb bnc bng bni bnn bno bnr bns bnt bnu boa bob boc bog boi bon boo bor bos bot bou bra brb brg bri brn bro brr brs brt bru bsa bsb bsc bsg bsi bsn bso bsr bss bst bsu bta btb btc btg bti btn bto btr bts btt btu bua bub buc bug bui bun buo bur bus but buu c-- caa cab cac cag cai can cao car cas cat cau cba cbb cbc cbg cbi cbn cbo cbr cbs cbt cbu cca ccb ccc ccg cci ccn cco ccr ccs cct ccu cga cgb cgc cgg cgi cgn cgo cgr cgs cgt cgu ci- cia cib cic cig cii cin cio cir cis cit ciu cn- cna cnb cnc cng cni cnn cno cnr cns cnt cnu co- coa cob coc cog coi con coo cor cos cot cou cra crb crc crg cri crn cro crr crs crt cru csa csb csc csg csi csn cso csr css cst csu cta ctb ctc ctg cti ctn cto ctr cts ctt ctu cua cub cuc cug cui cun cuo cur cus cut cuu gaa gab gac gag gai gan gao gar gas gat gau gba gbc gbg gbi gbn gbo gbr gbs gbt gbu gca gcb gcc gcg gci gcn gco gcr gcs gct gcu gga ggb ggc ggg ggi ggn ggo ggr ggs ggt ggu gia gib gic gig gii gin gio gir gis git giu gna gnb gnc gni gnn gno gnr gns gnt gnu goa gob goc gog goi gon goo gor gos got gou gra grb grc grg gri grn gro grr grs grt gru gsa gsb gsc gsg gsi gsn gso gsr gss gst gsu gta gtb gtc gtg gti gtn gto gtr gts gtt gtu gu- gua gub guc gug gui gun guo gur gus gut guu ia- iaa iab iac iag iai ian iao iar ias iat iau iba ibb ibc ibg ibi ibn ibo ibr ibs ibt ibu ica icb icc icg ici icn ico icr ics ict icu iga igb igc igg igi ign igo igr igs igt igu iia iib iic iii iin iio iir iis iit iiu in- ina inb inc ing ini inn ino inr ins int inu io- ioa iob ioc iog ioi ion ioo ior ios iot iou ir- ira irb irc irg iri irn iro irr irs irt iru is- isa isb isc isg isi isn iso isr iss ist isu ita itb itc itg iti itn ito its itt itu iu- iua iub iuc iug iui iur ius iut n-i naa nab nac nag nai nan nao nar nas nat nau nba nbb nbc nbg nbi nbn nbo nbr nbs nbt nbu nca ncb ncc ncg nci ncn nco ncr ncs nct ncu nga ngb ngc ngg ngi ngn ngo ngs ngt ngu nia nib nic nig nii nin nio nir nis nit niu nna nnb nnc nng nni nnn nno nns nnt nnu no- noa nob noc nog noi non noo nor nos not nou nra nrb nrc nrg nri nrn nro nrr nrs nrt nru nsa nsb nsc nsg nsi nsn nso nsr nss nst nsu nta ntb ntc ntg nti ntn nto ntr nts ntt ntu nua nub nuc nug nui nun nuo nur nus nut nuu o-i oaa oab oac oag oai oan oao oar oas oat oau ob- oba obb obc obg obi obn obo obr obs obt obu oc- oca ocb occ ocg oci ocn oco ocr ocs oct ocu oga ogc ogg ogi ogn ogo ogs ogt oia oib oic oii oin oio oir ois oit oiu on- ona onb onc ong oni onn ono onr ons ont onu oo- ooa oob ooc oog ooi oon ooo oor oos oot or- ora orb orc org ori orn oro orr ors ort oru os- osa osb osc osg osi osn oso osr oss ost osu ot- ota otb otc otg oti otn oto otr ots ott otu ou- oua ouc oui oun ouo our ous out ra- raa rab rac rag rai ran rao rar ras rat rau rba rbb rbc rbg rbi rbn rbo rbr rbs rbt rbu rca rcb rcc rcg rci rcn rco rcr rcs rct rcu rga rgb rgc rgg rgi rgn rgo rgr rgs rgt ria rib ric rig rii rin rio rir ris rit rna rnb rnc rng rni rnn rno rnr rns rnt rnu roa rob roc rog roi ron roo ror ros rot rou rra rrb rrc rrg rri rrn rrr rrs rrt rru rsa rsb rsc rsg rsi rsn rso rsr rss rst rsu rta rtb rtc rtg rti rtn rto rtr rts rtt rtu rua rub ruc rug rui run ruo rur rus rut ruu saa sab sac sag sai san sao sar sas sat sau sba sbb sbc