-th a-a a-b a-c a-t aaa aab aac aad aae aah aao aas aat aau ab- aba abb abc abd abe abh abo abs abt abu ac- aca acb acc acd ace ach aco acs act acu ad- ada adb adc add ade adh ado ads adt adu aea aeb aec aed aee aeh aeo aes aet aeu aha ahb ahc ahd ahe ahh aho ahs aht ahu aoa aob aoc aod aoe aoh aoo aos aot aou as- asa asb asc asd ase ash aso ass ast asu at- ata atb atc atd ate ath ato ats att atu au- aua aub auc aud aue auh auo aus aut b-u baa bab bac bad bae bah bao bas bat bau bba bbb bbc bbd bbe bbh bbo bbs bbt bbu bca bcb bcc bcd bce bch bco bcs bct bcu bda bdb bdc bdd bde bdh bdo bds bdt bdu be- bea beb bec bed bee beh beo bes bet beu bha bhb bhc bhd bhe bhh bho bhs bht bhu boa bob boc bod boe boh boo bos bot bou bsa bsb bsc bsd bse bsh bso bss bst bsu bta btb btc btd bte bth bto bts btt btu bua bub buc bud bue buh buo bus but buu c-- caa cab cac cad cae cah cao cas cat cau cba cbb cbc cbd cbe cbh cbo cbs cbt cbu cca ccb ccc ccd cce cch cco ccs cct ccu cda cdb cdc cdd cde cdh cdo cds cdt cdu ce- cea ceb cec ced cee ceh ceo ces cet ceu ch- cha chb chc chd che chh cho chs cht chu co- coa cob coc cod coe coh coo cos cot cou csa csb csc csd cse csh cso css cst csu cta ctb ctc ctd cte cth cto cts ctt ctu cua cub cuc cud cue cuh cuo cus cut cuu daa dab dac dad dae dah dao das dat dau dba dbb dbc dbd dbe dbh dbo dbs dbt dbu dca dcb dcc dcd dce dco dcs dct dcu dda ddb ddc ddd dde ddh ddo dds ddt ddu de- dea deb dec ded dee deh deo des det deu dh- dha dhb dhc dhd dhe dhh dho dhs dht dhu doa dob doc dod doe doh doo dos dot dou dsa dsb dsc dsd dse dsh dso dss dst dsu dta dtb dtc dtd dte dth dto dts dtt dtu dua dub duc dud due duh duo dus dut eaa eab eac ead eae eah eao eas eat eau eba ebb ebc ebd ebe ebh ebo ebs ebt ebu ec- eca ecb ecc ecd ece ech eco ecs ect ecu ed- eda edb edc edd ede edh edo eds edt edu eea eeb eec eed eee eeo ees eet eha ehb ehc ehd ehe ehh eho ehs eht ehu eo- eoa eob eoc eod eoe eoh eoo eos eot eou es- esa esb esc esd ese esh eso ess est esu eta etb etc etd ete eth eto ets ett etu eu- eua eub euc eud eue eus eut haa hab hac had hae hah hao has hat hau hba hbb hbc hbd hbe hbh hbo hbs hbt hbu hca hcb hcc hcd hce hch hco hcs hct hda hdb hdc hdd hde hdh hdo hds hdt hdu he- hea heb hec hed hee heh heo hes het heu hha hhb hhc hhd hhe hhh hho hhs hht hhu hoa hob hoc hod hoe hoh hoo hos hot hou hsa hsb hsc hsd hse hsh hss hst hsu hta htb htc htd hte hth hto hts htt hua hub huc hud hue huh huo hus hut huu oaa oab oac oad oae oah oao oas oat oau ob- oba obb obc obd obe obh obo obs obt obu oc- oca ocb occ ocd och oco ocs oct ocu oda odb odc odd ode odh odo ods odt odu oea oeb oec oed oee oeh oeo oes oet oha ohc ohd ohe ohh oho ohs oht ohu oo- ooa oob ooc ood ooh ooo oos oot os- osa osb osc osd ose osh oso oss ost osu ot- ota otb otc otd ote oth oto ots ott otu ou- oua ouc oud oue ouh ouo ous out saa sab sac sad sae sah sao sas sat sau sba sbb sbc sbd sbe sbh sbo sbs sbt sbu sca scb scc scd sce sch sco scs sct scu sda sdb sdc sdd sde sdh sdo sds sdt sdu se- sea seb sec sed see seh seo ses set seu sh- sha shb shc shd she shh sho shs sht shu soa sob soc sod soe soh soo sos sot sou ss- ssa ssb ssc ssd sse ssh sso sss sst ssu sta stb stc std ste sth sto sts stt stu sua sub suc sud sue suh suo sus sut suu taa tab tac tad tae tah tao tas tat tau tba tbb tbc tbd tbe tbh tbo tbs tbt tbu tca tcb tcc tcd tce tch tco tcs tct tcu tda tdb tdc tdd tde tdh tdo tds tdt tdu te- tea teb tec ted tee teh teo tes tet teu th- tha thb thc thd the thh tho ths tht thu to- toa tob toc tod toe toh too tos tot tou tsa tsb tsc tsd tse tsh tso tss tst tsu tta ttb ttc ttd tte tth tto tts ttt ttu tua tub tuc tud tue tuh tuo tus tut tuu ua- uaa uab uac uad uae uah uao uas uat uau uba ubb ubc ube ubh ubo ubs ubt ubu uca ucb ucc ucd uce uch uco ucs uct ucu uda udb udc udd ude udo uds udt udu uea ueb uec ued uee ueh ues uet uha uhb uhc uhd uhe uhh uho uhs uht uhu uoa uob uoc uod uoe uoo uos uot usa usb usc usd use ush uso uss ust usu uta utb utc utd ute uth