-ic a-a a-b a-c a-i a-t aaa aab aac aag aai aam aan aas aat ab- aba abb abc abg abi abm abn abs abt ac- aca acb acc acg aci acm acn acs act ag- aga agb agc agg agi agm agn ags agt ai- aia aib aic aig aii aim ain ais ait ama amb amc amg ami amm amn ams amt an- ana anb anc ang ani anm ann ans ant as- asa asb asc asg asi asm asn ass ast at- ata atb atc atg ati atm atn ats att baa bab bac bag bai bam ban bas bat bba bbb bbc bbg bbi bbm bbn bbs bbt bca bcb bcc bcg bci bcm bcn bcs bct bga bgb bgc bgg bgi bgm bgn bgs bgt bi- bia bib bic big bii bim bin bis bit bma bmb bmc bmg bmi bmm bmn bms bmt bna bnb bnc bng bni bnn bns bnt bsa bsb bsc bsg bsi bsm bsn bss bst bta btb btc btg bti btm btn bts btt c-- caa cab cac cag cai cam can cas cat cba cbb cbc cbg cbi cbm cbn cbs cbt cca ccb ccc ccg cci ccm ccn ccs cct cga cgb cgc cgg cgi cgm cgn cgs cgt ci- cia cib cic cig cii cim cin cis cit cma cmb cmc cmg cmi cmm cmn cms cmt cn- cna cnb cnc cng cni cnm cnn cns cnt csa csb csc csg csi csm csn css cst cta ctb ctc ctg cti ctm ctn cts ctt gaa gab gac gag gai gam gan gas gat gba gbc gbg gbi gbm gbn gbs gbt gca gcb gcc gcg gci gcm gcn gcs gct gga ggb ggc ggg ggi ggm ggn ggs ggt gia gib gic gig gii gim gin gis git gma gmb gmc gmg gmi gmm gmn gms gmt gna gnb gnc gni gnm gnn gns gnt gsa gsb gsc gsg gsi gsm gsn gss gst gta gtb gtc gtg gti gtm gtn gts gtt ia- iaa iab iac iag iai iam ian ias iat iba ibb ibc ibg ibi ibm ibn ibs ibt ica icb icc icg ici icm icn ics ict iga igb igc igg igi igm ign igs igt iia iib iic iii iim iin iis iit im- ima imb imc img imi imm imn ims imt in- ina inb inc ing ini inm inn ins int is- isa isb isc isg isi ism isn iss ist ita itb itc itg iti itm itn its itt maa mab mac mag mai mam man mas mat mba mbb mbc mbg mbi mbm mbs mbt mc- mca mcb mcc mcg mci mcm mcn mcs mct mga mgb mgc mgi mgm mgn mgs mgt mi- mia mib mic mig mii mim min mis mit mma mmb mmc mmg mmi mmm mmn mms mmt mna mnb mnc mng mni mnm mnn mns mnt msa msb msc msg msi msm msn mss mst mta mtb mtc mtg mti mtm mtn mts mtt n-i naa nab nac nag nai nam nan nas nat nba nbb nbc nbg nbi nbm nbn nbs nbt nca ncb ncc ncg nci ncm ncn ncs nct nga ngb ngc ngg ngi ngm ngn ngs ngt nia nib nic nig nii nim nin nis nit nma nmb nmc nmg nmi nmm nmn nms nmt nna nnb nnc nng nni nnm nnn nns nnt nsa nsb nsc nsg nsi nsm nsn nss nst nta ntb ntc ntg nti ntm ntn nts ntt saa sab sac sag sai sam san sas sat sba sbb sbc sbg sbi sbm sbn sbs sbt sca scb scc scg sci scm scn scs sct sga sgb sgc sgg sgi sgm sgn sgs sgt sia sib sic sig sii sim sin sis sit sma smb smc smg smi smm smn sms smt sna snb snc sng sni snm snn sns snt ss- ssa ssb ssc ssg ssi ssm ssn sss sst sta stb stc stg sti stm stn sts stt taa tab tac tag tai tam tan tas tat tba tbb tbc tbg tbi tbm tbn tbs tbt tca tcb tcc tcg tci tcm tcn tcs tct tga tgb tgc tgg tgi tgm tgn tgs tgt tia tib tic tig tii tim tin tis tit tma tmb tmc tmg tmi tmm tmn tms tmt tna tnb tnc tng tni tnm tnn tns tnt tsa tsb tsc tsg tsi tsm tsn tss tst tta ttb ttc ttg tti ttm ttn tts ttt