a-a a-b a-i a-t aaa aab aag aai aan aao aap aar aas aat ab- aba abb abg abi abn abo abp abr abs abt ag- aga agb agg agi agn ago agp agr ags agt ai- aia aib aig aii ain aio aip air ais ait an- ana anb ang ani ann ano anp anr ans ant aoa aob aog aoi aon aoo aop aor aos aot ap- apa apb apg api apn apo app apr aps apt ar- ara arb arg ari arn aro arp arr ars art as- asa asb asg asi asn aso asp asr ass ast at- ata atb atg ati atn ato atp atr ats att b-p baa bab bag bai ban bao bap bar bas bat bba bbb bbg bbi bbn bbo bbp bbr bbs bbt bga bgb bgg bgi bgn bgo bgp bgr bgs bgt bi- bia bib big bii bin bio bip bir bis bit bna bnb bng bni bnn bno bnp bnr bns bnt boa bob bog boi bon boo bop bor bos bot bpa bpb bpg bpi bpn bpo bpp bpr bps bpt bra brb brg bri brn bro brp brr brs brt bsa bsb bsg bsi bsn bso bsp bsr bss bst bta btb btg bti btn bto btp btr bts btt g-p gaa gab gag gai gan gao gap gar gas gat gba gbg gbi gbn gbo gbp gbr gbs gbt gga ggb ggg ggi ggn ggo ggp ggr ggs ggt gia gib gig gii gin gio gip gir gis git gna gnb gni gnn gno gnp gnr gns gnt goa gob gog goi gon goo gop gor gos got gpa gpb gpg gpi gpn gpo gpp gpr gps gpt gra grb grg gri grn gro grp grr grs grt gsa gsb gsg gsi gsn gso gsp gsr gss gst gta gtb gtg gti gtn gto gtp gtr gts gtt ia- iaa iab iag iai ian iao iap iar ias iat iba ibb ibg ibi ibn ibo ibp ibr ibs ibt iga igb igg igi ign igo igp igr igs igt iia iib iii iin iio iip iir iis iit in- ina inb ing ini inn ino inp inr ins int io- ioa iob iog ioi ion ioo iop ior ios iot ipa ipb ipg ipi ipn ipo ipp ipr ips ipt ir- ira irb irg iri irn iro irp irr irs irt is- isa isb isg isi isn iso isp isr iss ist ita itb itg iti itn ito itp its itt n-i naa nab nag nai nan nao nap nar nas nat nba nbb nbg nbi nbn nbo nbp nbr nbs nbt nga ngb ngg ngi ngn ngo ngp ngs ngt nia nib nig nii nin nio nip nir nis nit nna nnb nng nni nnn nno nnp nns nnt no- noa nob nog noi non noo nop nor nos not npa npb npg npi npn npo npp npr nps npt nra nrb nrg nri nrn nro nrp nrr nrs nrt nsa nsb nsg nsi nsn nso nsp nsr nss nst nta ntb ntg nti ntn nto ntp ntr nts ntt o-i oaa oab oag oai oan oao oap oar oas oat ob- oba obb obg obi obn obo obp obr obs obt oga ogg ogi ogn ogo ogp ogs ogt oia oib oii oin oio oip oir ois oit on- ona onb ong oni onn ono onp onr ons ont oo- ooa oob oog ooi oon ooo oop oor oos oot op- opa opb opg opi opn opo opp opr ops opt or- ora orb org ori orn oro orp orr ors ort os- osa osb osg osi osn oso osp osr oss ost ot- ota otb otg oti otn oto otp otr ots ott p-p paa pab pag pai pan pao pap par pas pat pba pbb pbg pbi pbn pbo pbp pbr pbs pbt pga pgb pgg pgi pgn pgo pgp pgr pgs pgt pia pib pig pii pin pio pip pir pis pit pn- pna pnb png pni pnn pno pnp pnr pns pnt poa pob pog poi pon poo pop por pos pot ppa ppb ppg ppi ppn ppo ppp ppr pps ppt pra prb prg pri prn pro prp prr prs prt ps- psa psb psg psi psn pso psp psr pss pst pt- pta ptb ptg pti ptn pto ptp ptr pts ptt ra- raa rab rag rai ran rao rap rar ras rat rba rbb rbg rbi rbn rbo rbp rbr rbs rbt rga rgb rgg rgi rgn rgo rgp rgr rgs rgt ria rib rig rii rin rio rip rir ris rit rna rnb rng rni rnn rno rnp rnr rns rnt roa rob rog roi ron roo rop ror ros rot rpa rpb rpg rpi rpn rpo rpp rpr rps rpt rra rrb rrg rri rrn rrp rrr rrs rrt rsa rsb rsg rsi rsn rso rsp rsr rss rst rta rtb rtg rti rtn rto rtp rtr rts rtt saa sab sag sai san sao sap sar sas sat sba sbb sbg sbi sbn sbo sbp sbr sbs sbt sga sgb sgg sgi sgn sgo sgp sgr sgs sgt sia sib sig sii sin sio sip sir sis sit sna snb sng sni snn sno snp snr sns snt soa sob sog soi son soo sop sor sos sot spa spb spg spi spn spo spp spr sps spt sr- sra srb srg sri srn sro srp srr srs srt ss- ssa ssb ssg ssi ssn sso ssp ssr sss sst sta stb stg sti stn sto stp str sts stt taa tab tag tai tan tao tap tar tas tat tba tbb tbg tbi tbn tbo tbp tbr tbs tbt tga tgb tgg tgi tgn tgo tgp tgr tgs tgt tia tib tig tii tin tio tip tir tis tit tna tnb tng tni tnn tno tnp tnr tns tnt to- toa tob tog toi ton too top tor tos tot tpa tpb tpg tpi tpn tpo tpp tpr tps tpt tra trb