-ic a-a a-b a-c a-i aaa aab aac aai aak aam aan aao aar aas ab- aba abb abc abi abk abm abn abo abr abs ac- aca acb acc aci ack acm acn aco acr acs ai- aia aib aic aii aik aim ain aio air ais aka akb akc aki akk akm akn ako akr aks ama amb amc ami amk amm amn amo amr ams an- ana anb anc ani ank anm ann ano anr ans aoa aob aoc aoi aok aom aon aoo aor aos ar- ara arb arc ari ark arm arn aro arr ars as- asa asb asc asi ask asm asn aso asr ass baa bab bac bai bak bam ban bao bar bas bba bbb bbc bbi bbk bbm bbn bbo bbr bbs bca bcb bcc bci bck bcm bcn bco bcr bcs bi- bia bib bic bii bik bim bin bio bir bis bka bkb bkc bkk bkm bkn bko bkr bks bma bmb bmc bmi bmk bmm bmn bmo bmr bms bna bnb bnc bni bnk bnn bno bnr bns boa bob boc boi bok bom bon boo bor bos bra brb bri brk brm brn bro brr brs bsa bsb bsc bsi bsk bsm bsn bso bsr bss c-- caa cab cac cai cak cam can cao car cas cba cbb cbc cbi cbk cbm cbn cbo cbr cbs cca ccb ccc cci cck ccm ccn cco ccr ccs ci- cia cib cic cii cik cim cin cio cir cis cka ckb ckc cki ckm cko cks cma cmb cmc cmi cmk cmm cmn cmo cmr cms cn- cna cnb cnc cni cnm cnn cno cnr cns co- coa cob coc coi cok com con coo cor cos cra crb crc cri crk crm crn cro crr crs csa csb csc csi csk csm csn cso csr css ia- iaa iab iac iai iam ian iao iar ias iba ibb ibc ibi ibk ibm ibn ibo ibr ibs ica icb icc ici ick icm icn ico icr ics iia iib iic iii iim iin iio iir iis ika ikb ikc iki ikk iko ikr iks im- ima imb imc imi imm imn imo ims in- ina inb inc ini ink inm inn ino inr ins io- ioa iob ioc ioi iom ion ioo ior ios ir- ira irb irc iri irk irm irn iro irr irs is- isa isb isc isi isk ism isn iso isr iss ka- kaa kab kac kai kak kam kan kao kar kas kba kbb kbc kbi kbk kbm kbn kbo kbr kbs kca kcb kcc kci kck kcm kcn kcr kcs kia kib kic kii kik kim kin kio kir kis kkb kkc kki kkk kkm kkn kkr kks kma kmb kmc kmi kmk kmm kmo kms kn- kna knc kni knk knm knn kno knr koa kob koc koi kok kom kon koo kor kos kra krc kri krk krn kro krr krs ksa ksb ksc ksi ksk ksm ksn kso ksr kss m-o m-r maa mab mac mai mak mam man mao mar mas mba mbb mbc mbi mbk mbm mbo mbr mbs mc- mca mcb mcc mci mck mcm mcn mco mcr mcs mi- mia mib mic mii mik mim min mio mir mis mka mkb mkc mkk mkm mkn mko mkr mks mma mmb mmc mmi mmk mmm mmn mmo mmr mms mna mnb mnc mni mnk mnm mnn mno mnr mns moa mob moc moi mok mom mon moo mor mos mra mrb mrc mri mrk mrm mrn mro mrr mrs msa msb msc msi msk msm msn mso msr mss n-i naa nab nac nai nak nam nan nao nar nas nba nbb nbc nbi nbk nbm nbn nbo nbr nbs nca ncb ncc nci nck ncm ncn nco ncr ncs nia nib nic nii nik nim nin nio nir nis nka nkc nki nkk nkm nkn nko nkr nks nma nmb nmc nmi nmk nmm nmn nmo nmr nms nna nnb nnc nni nnk nnm nnn nno nns no- noa nob noc noi nok nom non noo nor nos nra nrb nrc nri nrk nrm nrn nro nrr nrs nsa nsb nsc nsi nsk nsm nsn nso nsr nss o-i oaa oab oac oai oak oam oan oao oar oas ob- oba obb obc obi obk obm obn obo obr obs oc- oca ocb occ oci ock ocm ocn oco ocr ocs oia oib oic oii oik oim oin oio oir ois oka okb okc oki okk oko okr oks om- oma omb omc omi omm omn omo omr oms on- ona onb onc oni onk onn ono onr ons oo- ooa oob ooc ooi ook oom oon ooo oor oos or- ora orb orc ori ork orm orn oro orr ors os- osa osb osc osi osk osm osn oso osr oss ra- raa rab rac rai rak ram ran rao rar ras rba rbb rbc rbi rbk rbm rbn rbo rbr rbs rca rcb rcc rci rcm rcn rco rcr rcs ria rib ric rii rik rim rin rio rir ris rkb rkc rkk rkm rko rks rma rmb rmc rmi rmm rmn rmo rmr rms rna rnb rnc rni rnm rnn rno rnr rns roa rob roc roi rok rom ron roo ror ros rra rrb rrc rri rrk rrm rrn rrr rrs rsa rsb rsc rsi rsk rsm rsn rso rsr rss saa sab sac sai sak sam san sao sar sas sba sbb sbc sbi sbk sbm sbn sbo sbr sbs sca scb scc sci sck scm scn sco scr scs sia sib sic sii sik sim sin sio sir sis sk- ska skb skc ski skk skm sko skr sks sma smb smc smi smk smm smn smo smr sms sna snb snc sni snk snm snn sno snr sns soa sob soc soi sok som son soo sor sos sr- sra srb src sri srk srm srn sro srr srs ss- ssa ssb ssc ssi ssk ssm ssn sso