a-a a-b a-i aaa aab aah aai aan aao aap aar aas ab- aba abb abh abi abn abo abp abr abs aha ahb ahh ahi ahn aho ahp ahr ahs ai- aia aib aih aii ain aio aip air ais an- ana anb anh ani ann ano anp anr ans aoa aob aoh aoi aon aoo aop aor aos ap- apa apb aph api apn apo app apr aps ar- ara arb arh ari arn aro arp arr ars as- asa asb ash asi asn aso asp asr ass b-p baa bab bah bai ban bao bap bar bas bba bbb bbh bbi bbn bbo bbp bbr bbs bha bhb bhh bhi bho bhp bhr bhs bi- bia bib bih bii bin bio bip bir bis bna bnb bni bnn bno bnp bnr bns boa bob boh boi bon boo bop bor bos bpa bpb bph bpi bpn bpo bpp bpr bps bra brb brh bri brn bro brp brr brs bsa bsb bsh bsi bsn bso bsp bsr bss h-i haa hab hah hai han hao hap har has hba hbb hbh hbi hbn hbo hbp hbr hbs hha hhb hhh hhi hhn hho hhp hhr hhs hia hib hih hii hin hio hip hir his hna hnb hnh hnn hno hns hoa hob hoh hoi hon hoo hop hor hos hpa hpb hph hpi hpn hpo hpp hpr hps hr- hra hrb hrh hri hrn hro hrp hrr hrs hsa hsb hsh hsi hsn hsp hsr hss ia- iaa iab iah iai ian iao iap iar ias iba ibb ibh ibi ibn ibo ibp ibr ibs iha ihb ihh ihi ihn iho ihp ihr ihs iia iib iih iii iin iio iip iir iis in- ina inb inh ini inn ino inp inr ins io- ioa iob ioh ioi ion ioo iop ior ios ipa ipb ipi ipn ipo ipp ipr ips ir- ira irb iri irn iro irp irr irs is- isa isb ish isi isn iso isp isr iss n-i naa nab nah nai nan nao nap nar nas nba nbb nbi nbn nbo nbp nbr nbs nha nhb nhh nhi nhn nhp nhr nhs nia nib nih nii nin nio nip nir nis nna nnb nnh nni nnn nno nnp nns no- noa nob noh noi non noo nop nor nos npa npb nph npi npn npo npp npr nps nra nrb nri nrn nro nrp nrr nrs nsa nsb nsh nsi nsn nso nsp nsr nss o-i oaa oab oah oai oan oao oap oar oas ob- oba obb obh obi obn obo obp obr obs oha ohh ohi ohn oho ohp ohr ohs oia oib oii oin oio oip oir ois on- ona onb onh oni onn ono onp onr ons oo- ooa oob ooh ooi oon ooo oop oor oos op- opa opb oph opi opn opo opp opr ops or- ora orb orh ori orn oro orp orr ors os- osa osb osh osi osn oso osp osr oss p-p paa pab pah pai pan pao pap par pas pba pbb pbi pbn pbo pbp pbr pbs pha phb phi phn pho php phr phs pia pib pih pii pin pio pip pir pis pn- pna pnb pnh pni pnn pno pnp pnr pns poa pob poh poi pon poo pop por pos ppa ppb pph ppi ppn ppo ppp ppr pps pra prb prh pri prn pro prp prr prs ps- psa psb psh psi psn pso psp psr pss ra- raa rab rah rai ran rao rap rar ras rba rbb rbh rbi rbn rbo rbp rbr rbs rh- rha rhb rhh rhi rhn rho rhp rhr rhs ria rib rih rii rin rio rip rir ris rna rnb rnh rni rnn rno rnp rnr rns roa rob roh roi ron roo rop ror ros rpa rpb rph rpi rpn rpo rpp rpr rps rra rrb rrh rri rrn rrp rrr rrs rsa rsb rsh rsi rsn rso rsp rsr rss saa sab sah sai san sao sap sar sas sba sbb sbh sbi sbn sbo sbp sbr sbs sh- sha shb shh shi shn sho shp shr shs sia sib sih sii sin sio sip sir sis sna snb sni snn sno snp snr sns soa sob soh soi son soo sop sor sos spa spb sph spi spn spo spp spr sps sr- sra srb srh sri srn sro srp srr srs ss- ssa ssb ssh ssi ssn sso ssp ssr sss