-ic a-a a-b a-c a-i a-t aaa aab aac aai aak aam aar aas aat ab- aba abb abc abi abk abm abr abs abt ac- aca acb acc aci ack acm acr acs act ai- aia aib aic aii aik aim air ais ait aka akb akc aki akk akm akr aks ama amb amc ami amk amm amr ams amt ar- ara arb arc ari ark arm arr ars art as- asa asb asc asi ask asm asr ass ast at- ata atb atc ati atm atr ats att baa bab bac bai bak bam bar bas bat bba bbb bbc bbi bbk bbm bbr bbs bbt bca bcb bcc bci bck bcm bcr bcs bct bi- bia bib bic bii bik bim bir bis bit bka bkb bkc bkk bkm bkr bks bkt bma bmb bmc bmi bmk bmm bmr bms bmt bra brb bri brk brm brr brs brt bsa bsb bsc bsi bsk bsm bsr bss bst bta btb btc bti btk btm btr bts btt c-- caa cab cac cai cak cam car cas cat cba cbb cbc cbi cbk cbm cbr cbs cbt cca ccb ccc cci cck ccm ccr ccs cct ci- cia cib cic cii cik cim cir cis cit cka ckb ckc cki ckm cks ckt cma cmb cmc cmi cmk cmm cmr cms cmt cra crb crc cri crk crm crr crs crt csa csb csc csi csk csm csr css cst cta ctb ctc cti ctk ctm ctr cts ctt ia- iaa iab iac iai iam iar ias iat iba ibb ibc ibi ibk ibm ibr ibs ibt ica icb icc ici ick icm icr ics ict iia iib iic iii iim iir iis iit ika ikb ikc iki ikk ikr iks ikt im- ima imb imc imi imm ims imt ir- ira irb irc iri irk irm irr irs irt is- isa isb isc isi isk ism isr iss ist ita itb itc iti itk itm its itt k-t ka- kaa kab kac kai kak kam kar kas kat kba kbb kbc kbi kbk kbm kbr kbs kca kcb kcc kci kck kcm kcr kcs kct kia kib kic kii kik kim kir kis kit kkb kkc kki kkk kkm kkr kks kkt kma kmb kmc kmi kmk kmm kms kmt kra krc kri krk krr krs krt ksa ksb ksc ksi ksk ksm ksr kss kst kta ktb ktc ktk ktm ktr kts ktt m-r maa mab mac mai mak mam mar mas mat mba mbb mbc mbi mbk mbm mbr mbs mbt mc- mca mcb mcc mci mck mcm mcr mcs mct mi- mia mib mic mii mik mim mir mis mit mka mkb mkc mkk mkm mkr mks mkt mma mmb mmc mmi mmk mmm mmr mms mmt mra mrb mrc mri mrk mrm mrr mrs mrt msa msb msc msi msk msm msr mss mst mta mtb mtc mti mtk mtm mtr mts mtt ra- raa rab rac rai rak ram rar ras rat rba rbb rbc rbi rbk rbm rbr rbs rbt rca rcb rcc rci rcm rcr rcs rct ria rib ric rii rik rim rir ris rit rkb rkc rkk rkm rks rkt rma rmb rmc rmi rmm rmr rms rmt rra rrb rrc rri rrk rrm rrr rrs rrt rsa rsb rsc rsi rsk rsm rsr rss rst rta rtb rtc rti rtk rtm rtr rts rtt saa sab sac sai sak sam sar sas sat sba sbb sbc sbi sbk sbm sbr sbs sbt sca scb scc sci sck scm scr scs sct sia sib sic sii sik sim sir sis sit sk- ska skb skc ski skk skm skr sks skt sma smb smc smi smk smm smr sms smt sr- sra srb src sri srk srm srr srs srt ss- ssa ssb ssc ssi ssk ssm ssr sss sst sta stb stc sti stk stm str sts stt taa tab tac tai tak tam tar tas tat tba tbb tbc tbi tbk tbm tbr tbs tbt tca tcb tcc tci tck tcm tcr tcs tct tia tib tic tii tik tim tir tis tit tka tkb tkc tkk tkm tkr tks tkt tma tmb tmc tmi tmk tmm tmr tms tmt tra trb trc tri trk trm trr trs trt tsa tsb tsc tsi tsk tsm tsr tss tst tta ttb ttc tti ttk ttm ttr tts ttt