-ic a-a a-b a-c a-i a-t aaa aab aac aad aai aao aar aas aat aau ab- aba abb abc abd abi abo abr abs abt abu ac- aca acb acc acd aci aco acr acs act acu ad- ada adb adc add adi ado adr ads adt adu ai- aia aib aic aid aii aio air ais ait aiu aoa aob aoc aod aoi aoo aor aos aot aou ar- ara arb arc ard ari aro arr ars art aru as- asa asb asc asd asi aso asr ass ast asu at- ata atb atc atd ati ato atr ats att atu au- aua aub auc aud aui auo aur aus aut b-u baa bab bac bad bai bao bar bas bat bau bba bbb bbc bbd bbi bbo bbr bbs bbt bbu bca bcb bcc bcd bci bco bcr bcs bct bcu bda bdb bdc bdd bdi bdo bdr bds bdt bdu bi- bia bib bic bid bii bio bir bis bit biu boa bob boc bod boi boo bor bos bot bou bra brb brd bri bro brr brs brt bru bsa bsb bsc bsd bsi bso bsr bss bst bsu bta btb btc btd bti bto btr bts btt btu bua bub buc bud bui buo bur bus but buu c-- caa cab cac cad cai cao car cas cat cau cba cbb cbc cbd cbi cbo cbr cbs cbt cbu cca ccb ccc ccd cci cco ccr ccs cct ccu cda cdb cdc cdd cdi cdo cdr cds cdt cdu ci- cia cib cic cid cii cio cir cis cit ciu co- coa cob coc cod coi coo cor cos cot cou cra crb crc crd cri cro crr crs crt cru csa csb csc csd csi cso csr css cst csu cta ctb ctc ctd cti cto ctr cts ctt ctu cua cub cuc cud cui cuo cur cus cut cuu daa dab dac dad dai dao dar das dat dau dba dbb dbc dbd dbi dbo dbr dbs dbt dbu dca dcb dcc dcd dci dco dcr dcs dct dcu dda ddb ddc ddd ddi ddo ddr dds ddt ddu di- dia dib dic did dii dio dir dis dit diu doa dob doc dod doi doo dor dos dot dou dra drb drc drd dri dro drr drs drt dru dsa dsb dsc dsd dsi dso dsr dss dst dsu dta dtb dtc dtd dti dto dtr dts dtt dtu dua dub duc dud dui duo dur dus dut i-d ia- iaa iab iac iad iai iao iar ias iat iau iba ibb ibc ibd ibi ibo ibr ibs ibt ibu ica icb icc icd ici ico icr ics ict icu ida idb idc idd idi ido idr ids idt idu iia iib iic iid iii iio iir iis iit iiu io- ioa iob ioc iod ioi ioo ior ios iot iou ir- ira irb irc ird iri iro irr irs irt iru is- isa isb isc isd isi iso isr iss ist isu ita itb itc itd iti ito its itt itu iu- iua iub iuc iud iui iur ius iut o-i oaa oab oac oad oai oao oar oas oat oau ob- oba obb obc obd obi obo obr obs obt obu oc- oca ocb occ ocd oci oco ocr ocs oct ocu oda odb odc odd odi odo odr ods odt odu oia oib oic oid oii oio oir ois oit oiu oo- ooa oob ooc ood ooi ooo oor oos oot or- ora orb orc ord ori oro orr ors ort oru os- osa osb osc osd osi oso osr oss ost osu ot- ota otb otc otd oti oto otr ots ott otu ou- oua ouc oud oui ouo our ous out ra- raa rab rac rad rai rao rar ras rat rau rba rbb rbc rbd rbi rbo rbr rbs rbt rbu rca rcb rcc rcd rci rco rcr rcs rct rcu rda rdb rdc rdd rdi rdo rdr rds rdt rdu ria rib ric rid rii rio rir ris rit roa rob roc rod roi roo ror ros rot rou rra rrb rrc rrd rri rrr rrs rrt rru rsa rsb rsc rsd rsi rso rsr rss rst rsu rta rtb rtc rtd rti rto rtr rts rtt rtu rua rub ruc rud rui ruo rur rus rut ruu saa sab sac sad sai sao sar sas sat sau sba sbb sbc sbd sbi sbo sbr sbs sbt sbu sca scb scc scd sci sco scr scs sct scu sda sdb sdc sdd sdi sdo sdr sds sdt sdu sia sib sic sid sii sio sir sis sit siu soa sob soc sod soi soo sor sos sot sou sr- sra srb src srd sri sro srr srs srt ss- ssa ssb ssc ssd ssi sso ssr sss sst ssu sta stb stc std sti sto str sts stt stu sua sub suc sud sui suo sur sus sut suu taa tab tac tad tai tao tar tas tat tau tba tbb tbc tbd tbi tbo tbr tbs tbt tbu tca tcb tcc tcd tci tco tcr tcs tct tcu tda tdb tdc tdd tdi tdo tdr tds tdt tdu tia tib tic tid tii tio tir tis tit tiu to- toa tob toc tod toi too tor tos tot tou tra trb trc trd tri tro trr trs trt tru tsa tsb tsc tsd tsi tso tsr tss tst tsu tta ttb ttc ttd tti tto ttr tts ttt ttu tua tub tuc tud tui tuo tur tus tut tuu ua- uaa uab uac uad uai uao uar uas uat uau uba ubb ubc ubi ubo ubr ubs ubt ubu uca ucb ucc ucd uci uco ucr ucs uct ucu uda udb udc udd udi udo udr uds udt udu uia uib uic uid uii uio uir uis uit uiu uoa uob uoc uod uoo uor uos uot ur- ura urb urc urd uri uro urr urs urt uru usa usb usc usd usi