a-a a-b a-i a-t aaa aab aag aai aao aar aas aat aau ab- aba abb abg abi abo abr abs abt abu ag- aga agb agg agi ago agr ags agt agu ai- aia aib aig aii aio air ais ait aiu aoa aob aog aoi aoo aor aos aot aou ar- ara arb arg ari aro arr ars art aru as- asa asb asg asi aso asr ass ast asu at- ata atb atg ati ato atr ats att atu au- aua aub aug aui auo aur aus aut b-u baa bab bag bai bao bar bas bat bau bba bbb bbg bbi bbo bbr bbs bbt bbu bga bgb bgg bgi bgo bgr bgs bgt bgu bi- bia bib big bii bio bir bis bit biu boa bob bog boi boo bor bos bot bou bra brb brg bri bro brr brs brt bru bsa bsb bsg bsi bso bsr bss bst bsu bta btb btg bti bto btr bts btt btu bua bub bug bui buo bur bus but buu gaa gab gag gai gao gar gas gat gau gba gbg gbi gbo gbr gbs gbt gbu gga ggb ggg ggi ggo ggr ggs ggt ggu gia gib gig gii gio gir gis git giu goa gob gog goi goo gor gos got gou gra grb grg gri gro grr grs grt gru gsa gsb gsg gsi gso gsr gss gst gsu gta gtb gtg gti gto gtr gts gtt gtu gu- gua gub gug gui guo gur gus gut guu ia- iaa iab iag iai iao iar ias iat iau iba ibb ibg ibi ibo ibr ibs ibt ibu iga igb igg igi igo igr igs igt igu iia iib iii iio iir iis iit iiu io- ioa iob iog ioi ioo ior ios iot iou ir- ira irb irg iri iro irr irs irt iru is- isa isb isg isi iso isr iss ist isu ita itb itg iti ito its itt itu iu- iua iub iug iui iur ius iut o-i oaa oab oag oai oao oar oas oat oau ob- oba obb obg obi obo obr obs obt obu oga ogg ogi ogo ogs ogt oia oib oii oio oir ois oit oiu oo- ooa oob oog ooi ooo oor oos oot or- ora orb org ori oro orr ors ort oru os- osa osb osg osi oso osr oss ost osu ot- ota otb otg oti oto otr ots ott otu ou- oua oui ouo our ous out ra- raa rab rag rai rao rar ras rat rau rba rbb rbg rbi rbo rbr rbs rbt rbu rga rgb rgg rgi rgo rgr rgs rgt ria rib rig rii rio rir ris rit roa rob rog roi roo ror ros rot rou rra rrb rrg rri rrr rrs rrt rru rsa rsb rsg rsi rso rsr rss rst rsu rta rtb rtg rti rto rtr rts rtt rtu rua rub rug rui ruo rur rus rut ruu saa sab sag sai sao sar sas sat sau sba sbb sbg sbi sbo sbr sbs sbt sbu sga sgb sgg sgi sgo sgr sgs sgt sgu sia sib sig sii sio sir sis sit siu soa sob sog soi soo sor sos sot sou sr- sra srb srg sri sro srr srs srt ss- ssa ssb ssg ssi sso ssr sss sst ssu sta stb stg sti sto str sts stt stu sua sub sug sui suo sur sus sut suu taa tab tag tai tao tar tas tat tau tba tbb tbg tbi tbo tbr tbs tbt tbu tga tgb tgg tgi tgo tgr tgs tgt tgu tia tib tig tii tio tir tis tit tiu to- toa tob tog toi too tor tos tot tou tra trb trg tri tro trr trs trt tru tsa tsb tsg tsi tso tsr tss tst tsu tta ttb ttg tti tto ttr tts ttt ttu tua tub tug tui tuo tur tus tut tuu ua- uaa uab uag uai uao uar uas uat uau uba ubb ubg ubi ubo ubr ubs ubt ubu uga ugb ugg ugi ugo ugr ugs ugt ugu uia uib uig uii uio uir uis uit uiu uoa uob uog uoo uor uos uot ur- ura urb urg uri uro urr urs urt uru usa usb usg usi uso usr uss ust usu uta utb uti uto utr uts utt utu uua uug uur uus uut uuu

-ous a-ii aaaa aaab aaai aaar aaas aaba aabb aabi aabt aaib aaii aais aaoo aara aari aaro aars aart aaru aasa aasi aass aast aasu aata aatt aaus abaa abab abag abai abar abas abat abau abb- abba abbb abbi abbo abbr abbs abbt abia abib abig abir abis abit abiu aboa abob aboo abor abos abot abou abra abri abro abrs abs- absa absi abss absu abta abts abtu abua abug abus abut ag-o agag agai agao agar agas agat agau agba agbo agga aggi aggu agia agib agig agii agio agir agis agit agob agog agoo agos agot agou agra agri agro agsa agsg agst agsu agta agtr agts agua agui agur agus agut aiai aias aiba aibo aiga aigo aiia aiib aiir aioi aira airi airo airs airt aisa aisb aisg aisi aiso aisr aist aita aiti aitr aits aitt aitu aiui aoba aora aorb aors aort aoss aous aout arab arag arai arar aras arat arau arba arbi arbs arga argb argi argo args aria arib arig arii ario aris arit aroa arob aroi aroo aror aros arr- arra arrg arri arro arrr arrs arrt arru ars- arsa arsi arso arst arsu arta arti arto artr arts arua arub arug arui arut asaa asab asag asai asao asar asas asat asau asba asbo asbu asgt asia asii asio asir asis asit asob asog asoi asor asos asot asou asra asrg asro asrs asru assa assi asso assr asss asst assu asta astb asti asto astr asts asub asui asur asus at-t ataa atab atai atar atas atat atbs