a-a a-b a-i aaa aab aaf aah aai aao aar aas ab- aba abb abf abh abi abo abr abs af- afa afb aff afh afi afo afr afs aha ahb ahf ahh ahi aho ahr ahs ai- aia aib aif aih aii aio air ais aoa aob aof aoh aoi aoo aor aos ar- ara arb arf arh ari aro arr ars as- asa asb asf ash asi aso asr ass baa bab baf bah bai bao bar bas bba bbb bbf bbh bbi bbo bbr bbs bfa bfb bff bfh bfi bfo bfr bfs bha bhb bhf bhh bhi bho bhr bhs bi- bia bib bif bih bii bio bir bis boa bob bof boh boi boo bor bos bra brb brf brh bri bro brr brs bsa bsb bsf bsh bsi bso bsr bss faa fab faf fah fai fao far fas fba fbb fbf fbh fbi fbo fbr fbs ffa fff ffh ffi ffo ffr ffs fha fhb fhf fhh fhi fho fhr fhs fia fib fif fih fii fir fis foa fob fof foh foi foo for fos fra frb frf frh fri fro frr frs fsa fsb fsf fsh fsi fso fsr fss h-i haa hab haf hah hai hao har has hba hbb hbf hbh hbi hbo hbr hbs hfa hfb hff hfh hfi hfo hfr hfs hha hhb hhf hhh hhi hho hhr hhs hia hib hif hih hii hio hir his hoa hob hof hoh hoi hoo hor hos hr- hra hrb hrf hrh hri hro hrr hrs hsa hsb hsf hsh hsi hsr hss i-f ia- iaa iab iaf iah iai iao iar ias iba ibb ibf ibh ibi ibo ibr ibs ifa ifb iff ifi ifo ifr ifs iha ihb ihf ihh ihi iho ihr ihs iia iib iif iih iii iio iir iis io- ioa iob iof ioh ioi ioo ior ios ir- ira irb irf iri iro irr irs is- isa isb isf ish isi iso isr iss o-i oaa oab oaf oah oai oao oar oas ob- oba obb obf obh obi obo obr obs of- ofa ofb off ofi ofo ofr ofs oha ohf ohh ohi oho ohr ohs oia oib oif oii oio oir ois oo- ooa oob oof ooh ooi ooo oor oos or- ora orb orf orh ori oro orr ors os- osa osb osf osh osi oso osr oss ra- raa rab raf rah rai rao rar ras rba rbb rbf rbh rbi rbo rbr rbs rfa rfb rff rfh rfi rfo rfr rfs rh- rha rhb rhf rhh rhi rho rhr rhs ria rib rif rih rii rio rir ris roa rob rof roh roi roo ror ros rra rrb rrf rrh rri rrr rrs rsa rsb rsf rsh rsi rso rsr rss saa sab saf sah sai sao sar sas sba sbb sbf sbh sbi sbo sbr sbs sfa sfb sff sfh sfi sfo sfr sfs sh- sha shb shf shh shi sho shr shs sia sib sif sih sii sio sir sis soa sob sof soh soi soo sor sos sr- sra srb srf srh sri sro srr srs ss- ssa ssb ssf ssh ssi sso ssr sss

a-ha a-ii aaaa aaab aaaf aaah aaai aaar aaas aaba aabb aabh aabi aafa aafb aaff aafi aaha aahs aaib aaii aais aaoo aara aari aaro aars aasa aasf aasi aass abaa abab abaf abai abar abas abb- abba abbb abbi abbo abbr abbs abff abha abhi abho abhr abhs abia abib abir abis aboa abob abof aboh aboo abor abos abra abri abro abrs abs- absa absf absi abss afaa afao afar afbs affa affi affo affs afhs afia afib afif afir afis afoa afoo afor afr- afra afri afro afrs afsa afsb ahab ahah ahai ahar ahas ahfa ahha ahhs ahio ahir ahis ahoa ahor ahra ahrr ahrs ahsa ahso ahss aiai aias aiba aibo aiff aifs aiha aiho aihs aiia aiib aiir aioi aira airh airi airo airs aisa aisb aish aisi aiso aisr aoah aoba aora aorb aors aoss arab araf arah arai arar aras arba arbh arbi arbs arfa arfb arff arfs arh- arhs aria arib arif arii ario aris aroa arob aroi aroo aror aros arr- arra arrh arri arro arrr arrs ars- arsa arsi arso asaa asab asaf asah asai asao asar asas asba asbo asfa asfi asha ashi ashs asia asif asii asio asir asis asob asof asoi asor asos asra asro asrs assa assh assi asso assr asss ba-i baaa baaf baah baar baas baba babb babi babo babr babs baff bafo baha bahi baho bahr bahs baia baib baio bair bais baoh baos bar- bara barb barf barh bari baro barr bars basa basf bash basi baso bass bbas bbbb bbbs bbhs bfas bffs bfhs bfsi bfsr bhai bhao bhar bhff bhhs bhir bhoi bhor bhra bhsf biaf biao biar bias biba bibb bibi bibo bibs bifa biff bifi biha bihi bihs biis bio- bioi bios bira birb biri biro birr birs bis- bisa bish biso biss boab boai boar boas boba bobb bobi bobo bobs bofa boff bofh bofs boha boho bohr bohs boi- boii bois boob boof booh boor boos bor- bora borf borh bori boro borr bors bosa bosh bosi boso boss brab braf brah brai brao bras brhs bria brih brio bris broa brob broh broo bror bros brrr brrs brsb brsr bsaa bsas bsfa bsff bsfs bshs bsos bsra faaa faah faas faba fabi fabo fabs fafa faff fafi fafo faha fahr fahs faio fair fais fara farb faro farr fars fasa fash fasi faso fass fbar fbhs fbis fbrs ffar ffff ffhs ffii ffrr ffsa ffss fhas fhfs fhhs fhrs fhss fiaa fiaf fiar fias fiba fibs fifa fiff fifi fifo fiii fior fios fira firs fisa fish fisi fiss foaf foar foba fobs fofo fohr fohs foia fois foof foos for- fora forb fori foro forr fors fosa fosb fosh fosi foso foss frab fras frhs fria frib frio fris frob froh fros