a-a a-b a-i a-t aaa aab aai aao aap aas aat ab- aba abb abi abo abp abs abt ai- aia aib aii aio aip ais ait aoa aob aoi aoo aop aos aot ap- apa apb api apo app aps apt as- asa asb asi aso asp ass ast at- ata atb ati ato atp ats att b-p baa bab bai bao bap bas bat bba bbb bbi bbo bbp bbs bbt bi- bia bib bii bio bip bis bit boa bob boi boo bop bos bot bpa bpb bpi bpo bpp bps bpt bsa bsb bsi bso bsp bss bst bta btb bti bto btp bts btt ia- iaa iab iai iao iap ias iat iba ibb ibi ibo ibp ibs ibt iia iib iii iio iip iis iit io- ioa iob ioi ioo iop ios iot ipa ipb ipi ipo ipp ips ipt is- isa isb isi iso isp iss ist ita itb iti ito itp its itt o-i oaa oab oai oao oap oas oat ob- oba obb obi obo obp obs obt oia oib oii oio oip ois oit oo- ooa oob ooi ooo oop oos oot op- opa opb opi opo opp ops opt os- osa osb osi oso osp oss ost ot- ota otb oti oto otp ots ott p-p paa pab pai pao pap pas pat pba pbb pbi pbo pbp pbs pbt pia pib pii pio pip pis pit poa pob poi poo pop pos pot ppa ppb ppi ppo ppp pps ppt ps- psa psb psi pso psp pss pst pt- pta ptb pti pto ptp pts ptt saa sab sai sao sap sas sat sba sbb sbi sbo sbp sbs sbt sia sib sii sio sip sis sit soa sob soi soo sop sos sot spa spb spi spo spp sps spt ss- ssa ssb ssi sso ssp sss sst sta stb sti sto stp sts stt taa tab tai tao tap tas tat tba tbb tbi tbo tbp tbs tbt tia tib tii tio tip tis tit to- toa tob toi too top tos tot tpa tpb tpi tpo tpp tps tpt tsa tsb tsi tso tsp tss tst tta ttb tti tto ttp tts ttt

a-ii aaaa aaab aaai aaap aaas aaba aabb aabi aabp aabt aaib aaii aais aaoo aapa aapi aapo aaps aapt aasa aasi aass aast aata aatt abaa abab abai abap abas abat abb- abba abbb abbi abbo abbs abbt abia abib abis abit aboa abob aboo abos abot abpa abpi abpp abps abs- absa absi absp abss abta abts aiai aias aiba aibo aiia aiib aioi aipa aipi aips aisa aisb aisi aiso aist aita aiti aits aitt aoba aopo aosp aoss apai apao apap apas apat apba apbs api- apia apio apip apis apit apo- apoo apop apos apot appa apps appt apsa apsi apso apss apta apti apts aptt asaa asab asai asao asap asas asat asba asbo asia asii asio asip asis asit asob asoi asop asos asot aspa aspi aspo asps aspt assa assi asso assp asss asst asta astb asti asto astp asts at-t ataa atab atai atap atas atat atbs atia atip atis atit atob atoi atop atos atot atsb atsi atst atta atti atto attp atts ba-i baaa baas baat baba babb babi babo babs baia baib baio bais bait baos bapa bapi bapp baps bapt basa basi baso bass bast bata bati bato bats batt bbas bbbb bbbs biao biap bias biat biba bibb bibi bibo bibs biis bio- bioi bios biot bipa bipp bips bis- bisa biso bisp biss bist bita bito bits bitt boab boai boas boat boba bobb bobi bobo bobs boi- boii bois boit boob boop boos boot bopa bopp bops bosa bosi boso boss bost bota botb boti boto bots bott bpai bpot bpsa bpti bsaa bsap bsas bsat bsos bspp bsts btaa btbp btob btps btss bttb iaaa iaai iaap iaas iaat iaba iaia iais iapa iapp iaps iapt iasa iasi iaso iasp iata iati ibas ibat ibia ibis ibos ibot ibsa ibss ibtb ibts iias iiii iiio iiis iiit iioi iioo iiop iios iipa iisi iisp iist iita iitt ioba iobi ioii ioio ioit iooi iooo ioos iops ioso iota ioto ipas ipat ipba ipop ipos ippa ippo ipsa ipsi ipso ipsp ipss ipta ipto ipts is-a isai isao isas isat isba isbt isia isis isit iso- isop isos ispa isps issa issi isso issp isss ista isti isto istp ists itaa itai itap itas itat itbs itia itis itoi itoo itos itpa itsa itsi itso itsp itta itto oais oapi oaps oasi oass oast oats obai obas obba obbo obia obis obit oboi obos obot obss obst obts oiba oiii oios oist oita oiti ooaa ooba oobi ooia oooo ooos oops oosa oosi oost ootb ootp oots opap opia opii opio opis opit opo- opos oppa oppi oppo opps opsa opsi opti opto opts osai osap osas osat osba osbp osia osii osip osis osoi osoo osos ossa ossb ossi osso osta osti osts otap otas otbs otis otit oto- otoo otos otpp otsa otso otta otti otto otts paap paas paat paba pabt paia paib paio paip pais pait paos papa papb papi papp paps pasa pasi paso pasp pass past pata pati pato pats patt pbpa pbsa pbsp piai piao pias piat pibb pibi piia piip piob piot pipa pipi pipo pipp pips pisa pisi piso piss pist pita piti pito pits pitt poas poat poba pobo pobs poia poio pois poop poos poot pop- popa popi popo popp pops popt posa posb posi poso poss post pota poti poto pots pott ppap ppib ppoa ppos pppa pppo pppp ppps ppss ppta ppts pptt psap psas psat psbt psia psip psis psoa psoi psos pspi pspp psps pssa psso psst psts ptab ptas ptop ptsa s-ib s-ii s-os saab saap saas saat saba sabb sabi sabo sabs saia saip sais sait saoi saos sapa sapi sapo sapp saps sasa sasi saso sass sast sata