-ic a-a a-b a-c a-i a-t aaa aab aac aag aai aam aan aar aas aat ab- aba abb abc abg abi abm abn abr abs abt ac- aca acb acc acg aci acm acn acr acs act ag- aga agb agc agg agi agm agn agr ags agt ai- aia aib aic aig aii aim ain air ais ait ama amb amc amg ami amm amn amr ams amt an- ana anb anc ang ani anm ann anr ans ant ar- ara arb arc arg ari arm arn arr ars art as- asa asb asc asg asi asm asn asr ass ast at- ata atb atc atg ati atm atn atr ats att baa bab bac bag bai bam ban bar bas bat bba bbb bbc bbg bbi bbm bbn bbr bbs bbt bca bcb bcc bcg bci bcm bcn bcr bcs bct bga bgb bgc bgg bgi bgm bgn bgr bgs bgt bi- bia bib bic big bii bim bin bir bis bit bma bmb bmc bmg bmi bmm bmn bmr bms bmt bna bnb bnc bng bni bnn bnr bns bnt bra brb brg bri brm brn brr brs brt bsa bsb bsc bsg bsi bsm bsn bsr bss bst bta btb btc btg bti btm btn btr bts btt c-- caa cab cac cag cai cam can car cas cat cba cbb cbc cbg cbi cbm cbn cbr cbs cbt cca ccb ccc ccg cci ccm ccn ccr ccs cct cga cgb cgc cgg cgi cgm cgn cgr cgs cgt ci- cia cib cic cig cii cim cin cir cis cit cma cmb cmc cmg cmi cmm cmn cmr cms cmt cn- cna cnb cnc cng cni cnm cnn cnr cns cnt cra crb crc crg cri crm crn crr crs crt csa csb csc csg csi csm csn csr css cst cta ctb ctc ctg cti ctm ctn ctr cts ctt gaa gab gac gag gai gam gan gar gas gat gba gbc gbg gbi gbm gbn gbr gbs gbt gca gcb gcc gcg gci gcm gcn gcr gcs gct gga ggb ggc ggg ggi ggm ggn ggr ggs ggt gia gib gic gig gii gim gin gir gis git gma gmb gmc gmg gmi gmm gmn gmr gms gmt gna gnb gnc gni gnm gnn gnr gns gnt gra grb grc grg gri grm grn grr grs grt gsa gsb gsc gsg gsi gsm gsn gsr gss gst gta gtb gtc gtg gti gtm gtn gtr gts gtt ia- iaa iab iac iag iai iam ian iar ias iat iba ibb ibc ibg ibi ibm ibn ibr ibs ibt ica icb icc icg ici icm icn icr ics ict iga igb igc igg igi igm ign igr igs igt iia iib iic iii iim iin iir iis iit im- ima imb imc img imi imm imn ims imt in- ina inb inc ing ini inm inn inr ins int ir- ira irb irc irg iri irm irn irr irs irt is- isa isb isc isg isi ism isn isr iss ist ita itb itc itg iti itm itn its itt m-r maa mab mac mag mai mam man mar mas mat mba mbb mbc mbg mbi mbm mbr mbs mbt mc- mca mcb mcc mcg mci mcm mcn mcr mcs mct mga mgb mgc mgi mgm mgn mgr mgs mgt mi- mia mib mic mig mii mim min mir mis mit mma mmb mmc mmg mmi mmm mmn mmr mms mmt mna mnb mnc mng mni mnm mnn mnr mns mnt mra mrb mrc mrg mri mrm mrn mrr mrs mrt msa msb msc msg msi msm msn msr mss mst mta mtb mtc mtg mti mtm mtn mtr mts mtt n-i naa nab nac nag nai nam nan nar nas nat nba nbb nbc nbg nbi nbm nbn nbr nbs nbt nca ncb ncc ncg nci ncm ncn ncr ncs nct nga ngb ngc ngg ngi ngm ngn ngs ngt nia nib nic nig nii nim nin nir nis nit nma nmb nmc nmg nmi nmm nmn nmr nms nmt nna nnb nnc nng nni nnm nnn nns nnt nra nrb nrc nrg nri nrm nrn nrr nrs nrt nsa nsb nsc nsg nsi nsm nsn nsr nss nst nta ntb ntc ntg nti ntm ntn ntr nts ntt ra- raa rab rac rag rai ram ran rar ras rat rba rbb rbc rbg rbi rbm rbn rbr rbs rbt rca rcb rcc rcg rci rcm rcn rcr rcs rct rga rgb rgc rgg rgi rgn rgr rgs rgt ria rib ric rig rii rim rin rir ris rit rma rmb rmc rmg rmi rmm rmn rmr rms rmt rna rnb rnc rng rni rnm rnn rnr rns rnt rra rrb rrc rrg rri rrm rrn rrr rrs rrt rsa rsb rsc rsg rsi rsm rsn rsr rss rst rta rtb rtc rtg rti rtm rtn rtr rts rtt saa sab sac sag sai sam san sar sas sat sba sbb sbc sbg sbi sbm sbn sbr sbs sbt sca scb scc scg sci scm scn scr scs sct sga sgb sgc sgg sgi sgm sgn sgr sgs sgt sia sib sic sig sii sim sin sir sis sit sma smb smc smg smi smm smn smr sms smt sna snb snc sng sni snm snn snr sns snt sr- sra srb src srg sri srm srn srr srs srt ss- ssa ssb ssc ssg ssi ssm ssn ssr sss sst sta stb stc stg sti stm stn str sts stt taa tab tac tag tai tam tan tar tas tat tba tbb tbc tbg tbi tbm tbn tbr tbs tbt tca tcb tcc tcg tci tcm tcn tcr tcs tct tga tgb tgc tgg tgi tgm tgn tgr tgs tgt tia tib tic tig tii tim tin tir tis tit tma tmb tmc tmg tmi tmm tmn tmr tms tmt tna tnb tnc tng tni tnm tnn tnr tns tnt tra trb trc trg tri trm trn trr trs trt tsa tsb