-ic a-a a-b a-c a-i a-t aaa aab aac aad aai aan aao aar aas aat ab- aba abb abc abd abi abn abo abr abs abt ac- aca acb acc acd aci acn aco acr acs act ad- ada adb adc add adi adn ado adr ads adt ai- aia aib aic aid aii ain aio air ais ait an- ana anb anc and ani ann ano anr ans ant aoa aob aoc aod aoi aon aoo aor aos aot ar- ara arb arc ard ari arn aro arr ars art as- asa asb asc asd asi asn aso asr ass ast at- ata atb atc atd ati atn ato atr ats att baa bab bac bad bai ban bao bar bas bat bba bbb bbc bbd bbi bbn bbo bbr bbs bbt bca bcb bcc bcd bci bcn bco bcr bcs bct bda bdb bdc bdd bdi bdo bdr bds bdt bi- bia bib bic bid bii bin bio bir bis bit bna bnb bnc bnd bni bnn bno bnr bns bnt boa bob boc bod boi bon boo bor bos bot bra brb brd bri brn bro brr brs brt bsa bsb bsc bsd bsi bsn bso bsr bss bst bta btb btc btd bti btn bto btr bts btt c-- caa cab cac cad cai can cao car cas cat cba cbb cbc cbd cbi cbn cbo cbr cbs cbt cca ccb ccc ccd cci ccn cco ccr ccs cct cda cdb cdc cdd cdi cdn cdo cdr cds cdt ci- cia cib cic cid cii cin cio cir cis cit cn- cna cnb cnc cnd cni cnn cno cnr cns cnt co- coa cob coc cod coi con coo cor cos cot cra crb crc crd cri crn cro crr crs crt csa csb csc csd csi csn cso csr css cst cta ctb ctc ctd cti ctn cto ctr cts ctt daa dab dac dad dai dan dao dar das dat dba dbb dbc dbd dbi dbn dbo dbr dbs dbt dca dcb dcc dcd dci dcn dco dcr dcs dct dda ddb ddc ddd ddi ddn ddo ddr dds ddt di- dia dib dic did dii din dio dir dis dit dna dnb dnc dnd dni dnn dno dnr dns dnt doa dob doc dod doi don doo dor dos dot dra drb drc drd dri drn dro drr drs drt dsa dsb dsc dsd dsi dsn dso dsr dss dst dta dtb dtc dtd dti dtn dto dtr dts dtt i-d ia- iaa iab iac iad iai ian iao iar ias iat iba ibb ibc ibd ibi ibn ibo ibr ibs ibt ica icb icc icd ici icn ico icr ics ict ida idb idc idd idi idn ido idr ids idt iia iib iic iid iii iin iio iir iis iit in- ina inb inc ind ini inn ino inr ins int io- ioa iob ioc iod ioi ion ioo ior ios iot ir- ira irb irc ird iri irn iro irr irs irt is- isa isb isc isd isi isn iso isr iss ist ita itb itc itd iti itn ito its itt n-i naa nab nac nad nai nan nao nar nas nat nba nbb nbc nbd nbi nbn nbo nbr nbs nbt nca ncb ncc ncd nci ncn nco ncr ncs nct nda ndb ndc ndd ndi ndn ndo ndr nds ndt nia nib nic nid nii nin nio nir nis nit nna nnb nnc nni nnn nno nns nnt no- noa nob noc nod noi non noo nor nos not nra nrb nrc nrd nri nrn nro nrr nrs nrt nsa nsb nsc nsd nsi nsn nso nsr nss nst nta ntb ntc ntd nti ntn nto ntr nts ntt o-i oaa oab oac oad oai oan oao oar oas oat ob- oba obb obc obd obi obn obo obr obs obt oc- oca ocb occ ocd oci ocn oco ocr ocs oct oda odb odc odd odi odn odo odr ods odt oia oib oic oid oii oin oio oir ois oit on- ona onb onc ond oni onn ono onr ons ont oo- ooa oob ooc ood ooi oon ooo oor oos oot or- ora orb orc ord ori orn oro orr ors ort os- osa osb osc osd osi osn oso osr oss ost ot- ota otb otc otd oti otn oto otr ots ott ra- raa rab rac rad rai ran rao rar ras rat rba rbb rbc rbd rbi rbn rbo rbr rbs rbt rca rcb rcc rcd rci rcn rco rcr rcs rct rda rdb rdc rdd rdi rdn rdo rdr rds rdt ria rib ric rid rii rin rio rir ris rit rna rnb rnc rnd rni rnn rno rnr rns rnt roa rob roc rod roi ron roo ror ros rot rra rrb rrc rrd rri rrn rrr rrs rrt rsa rsb rsc rsd rsi rsn rso rsr rss rst rta rtb rtc rtd rti rtn rto rtr rts rtt saa sab sac sad sai san sao sar sas sat sba sbb sbc sbd sbi sbn sbo sbr sbs sbt sca scb scc scd sci scn sco scr scs sct sda sdb sdc sdd sdi sdn sdo sdr sds sdt sia sib sic sid sii sin sio sir sis sit sna snb snc snd sni snn sno snr sns snt soa sob soc sod soi son soo sor sos sot sr- sra srb src srd sri srn sro srr srs srt ss- ssa ssb ssc ssd ssi ssn sso ssr sss sst sta stb stc std sti stn sto str sts stt taa tab tac tad tai tan tao tar tas tat tba tbb tbc tbd tbi tbn tbo tbr tbs tbt tca tcb tcc tcd tci tcn tco tcr tcs tct tda tdb tdc tdd tdi tdn tdo tdr tds tdt tia tib tic tid tii tin tio tir tis tit tna tnb tnc tnd tni tnn tno tnr tns tnt to- toa tob toc tod toi ton