a-a a-b a-t aaa aab aad aao aar aas aat ab- aba abb abd abo abr abs abt ad- ada adb add ado adr ads adt aoa aob aod aoo aor aos aot ar- ara arb ard aro arr ars art as- asa asb asd aso asr ass ast at- ata atb atd ato atr ats att baa bab bad bao bar bas bat bba bbb bbd bbo bbr bbs bbt bda bdb bdd bdo bdr bds bdt boa bob bod boo bor bos bot bra brb brd bro brr brs brt bsa bsb bsd bso bsr bss bst bta btb btd bto btr bts btt daa dab dad dao dar das dat dba dbb dbd dbo dbr dbs dbt dda ddb ddd ddo ddr dds ddt doa dob dod doo dor dos dot dra drb drd dro drr drs drt dsa dsb dsd dso dsr dss dst dta dtb dtd dto dtr dts dtt oaa oab oad oao oar oas oat ob- oba obb obd obo obr obs obt oda odb odd odo odr ods odt oo- ooa oob ood ooo oor oos oot or- ora orb ord oro orr ors ort os- osa osb osd oso osr oss ost ot- ota otb otd oto otr ots ott ra- raa rab rad rao rar ras rat rba rbb rbd rbo rbr rbs rbt rda rdb rdd rdo rdr rds rdt roa rob rod roo ror ros rot rra rrb rrd rrr rrs rrt rsa rsb rsd rso rsr rss rst rta rtb rtd rto rtr rts rtt saa sab sad sao sar sas sat sba sbb sbd sbo sbr sbs sbt sda sdb sdd sdo sdr sds sdt soa sob sod soo sor sos sot sr- sra srb srd sro srr srs srt ss- ssa ssb ssd sso ssr sss sst sta stb std sto str sts stt taa tab tad tao tar tas tat tba tbb tbd tbo tbr tbs tbt tda tdb tdd tdo tdr tds tdt to- toa tob tod too tor tos tot tra trb trd tro trr trs trt tsa tsb tsd tso tsr tss tst tta ttb ttd tto ttr tts ttt

a-do aaaa aaab aaad aaar aaas aaba aabb aabd aabt aada aads aadt aaoo aara aard aaro aars aart aasa aasd aass aast aata aatt abaa abab abad abar abas abat abb- abba abbb abbo abbr abbs abbt abda abdo aboa abob abod aboo abor abos abot abra abro abrs abs- absa absd abss abta abts adaa adab adad adao adar adas adat adba adda addd addo addr adds adob adod adoo ador ados adot adra adro adrs adsa adso adsr adss adst adta adts aoba aora aorb aors aort aosd aoss aotd arab arad arar aras arat arba arbs arda ardo ards aroa arob arod aroo aror aros arr- arra arro arrr arrs arrt ars- arsa arsd arso arst arta arto artr arts asaa asab asad asao asar asas asat asba asbo asda asdo asds asob asod asor asos asot asra asro asrs assa assd asso assr asss asst asta astb asto astr asts at-t ataa atab atad atar atas atat atbs atdt atob atod ator atos atot atra atro atsb atst atta atto attr atts baaa baad baar baas baat baba babb babo babr babs bada badb badd bado badr bads baos bar- bara barb bard baro barr bars bart basa baso bass bast bata bato bats batt bbad bbas bbbb bbbs bbdd bbdo bd-r bdos bdsd boab boad boar boas boat boba bobb bobo bobs boda bodb bodo bods boob bood boor boos boot bor- bora bord boro borr bors bort bosa boso boss bost bota botb botd boto bots bott brab brad brao bras brat brda brdo brds brdt broa brob brod broo bror bros brot brrr brrs brsb brsr brst bsaa bsas bsat bsbd bsod bsos bsra bsrd bssd bsts btaa btdt btob btor btrt btss bttb d-bo daab daad daar daas daba dabb dabo dabs dabt dada dado dads daos dara darb dard daro darr dars dart dasa dasb dasd dass dast data dato datr dats datt dbar dbas dbos dbrs dbsa dbss dbtt dddd ddot ddss ddts doab doar doas doat doba dobb dobs dod- doda dodd dodo dods doob dood door doos doot dora dord doro dorr dors dort dosa doso doss dost dota dotd doto dots dott draa drab drad drar dras drat drba drda drob drod drot drra drrs drsa dsba dsda dsdr dsoa dsos dsrr dssa dsst dsto dsts dtaa dtor dtot dtss oara oars oass oast oats obad obas obba obbo obdt obor obos obot obra obro obsd obsr obss obst obtd obts odas odbo odda oddd odds odoo odor odos odot odra odso odts ooaa ooba ooda oooo ooos oora oord oort oosa oost ootb oots orab orad orao orar oras orat orba orbb orbo orbs orda ordo ords oro- oror oros orot orra orro orrs orsa orso orta orto orts osar osas osat osba osoo osor osos osrd osro ossa ossb ossd osso osta ostr osts otar otas otbd otbs oto- otoo otor otos otra otro otrs otsa otso otta otto otts raab raad raas raat raba rabb rabo rabs rada radd rado radr rads radt raob raos rara rarb raro rars rasa rasd raso rass rast rata rato rats ratt rbbb rbbr rbbs rbds rbsd rbss rbst rdas rdos rdso roab road roar roas roat rob- roba robb robo robs robt roda rodd rodo rods roob rood roor roos root rora roro rort rosa roso ross rost rota roto rotr rots rott rrad rras rrat rrrr rsaa rsdd rsds rsos rssa rsts rtas rtdt rtss rtts s-os saab saad saar saas saat saba sabb sabo sabr sabs sada sadb sadd sado sadr sads sadt saor saos sara sard saro sarr sars sart sasa sasd saso sass sast sata satb satd sato satr sats satt sbaa sbar sbas sbbs sbds sbor sbot sbsa sbsd sbst sdba sdds sdot sdrs sdss soad soar soas soat soba sobo sobr