a-a a-b a-i a-t aaa aab aag aai aam aan aas aat ab- aba abb abg abi abm abn abs abt ag- aga agb agg agi agm agn ags agt ai- aia aib aig aii aim ain ais ait ama amb amg ami amm amn ams amt an- ana anb ang ani anm ann ans ant as- asa asb asg asi asm asn ass ast at- ata atb atg ati atm atn ats att baa bab bag bai bam ban bas bat bba bbb bbg bbi bbm bbn bbs bbt bga bgb bgg bgi bgm bgn bgs bgt bi- bia bib big bii bim bin bis bit bma bmb bmg bmi bmm bmn bms bmt bna bnb bng bni bnn bns bnt bsa bsb bsg bsi bsm bsn bss bst bta btb btg bti btm btn bts btt gaa gab gag gai gam gan gas gat gba gbg gbi gbm gbn gbs gbt gga ggb ggg ggi ggm ggn ggs ggt gia gib gig gii gim gin gis git gma gmb gmg gmi gmm gmn gms gmt gna gnb gni gnm gnn gns gnt gsa gsb gsg gsi gsm gsn gss gst gta gtb gtg gti gtm gtn gts gtt ia- iaa iab iag iai iam ian ias iat iba ibb ibg ibi ibm ibn ibs ibt iga igb igg igi igm ign igs igt iia iib iii iim iin iis iit im- ima imb img imi imm imn ims imt in- ina inb ing ini inm inn ins int is- isa isb isg isi ism isn iss ist ita itb itg iti itm itn its itt maa mab mag mai mam man mas mat mba mbb mbg mbi mbm mbs mbt mga mgb mgi mgm mgn mgs mgt mi- mia mib mig mii mim min mis mit mma mmb mmg mmi mmm mmn mms mmt mna mnb mng mni mnm mnn mns mnt msa msb msg msi msm msn mss mst mta mtb mtg mti mtm mtn mts mtt n-i naa nab nag nai nam nan nas nat nba nbb nbg nbi nbm nbn nbs nbt nga ngb ngg ngi ngm ngn ngs ngt nia nib nig nii nim nin nis nit nma nmb nmg nmi nmm nmn nms nmt nna nnb nng nni nnm nnn nns nnt nsa nsb nsg nsi nsm nsn nss nst nta ntb ntg nti ntm ntn nts ntt saa sab sag sai sam san sas sat sba sbb sbg sbi sbm sbn sbs sbt sga sgb sgg sgi sgm sgn sgs sgt sia sib sig sii sim sin sis sit sma smb smg smi smm smn sms smt sna snb sng sni snm snn sns snt ss- ssa ssb ssg ssi ssm ssn sss sst sta stb stg sti stm stn sts stt taa tab tag tai tam tan tas tat tba tbb tbg tbi tbm tbn tbs tbt tga tgb tgg tgi tgm tgn tgs tgt tia tib tig tii tim tin tis tit tma tmb tmg tmi tmm tmn tms tmt tna tnb tng tni tnm tnn tns tnt tsa tsb tsg tsi tsm tsn tss tst tta ttb ttg tti ttm ttn tts ttt