-ic a-a a-b a-c a-i aaa aab aac aag aai aam aan aar aas ab- aba abb abc abg abi abm abn abr abs ac- aca acb acc acg aci acm acn acr acs ag- aga agb agc agg agi agm agn agr ags ai- aia aib aic aig aii aim ain air ais ama amb amc amg ami amm amn amr ams an- ana anb anc ang ani anm ann anr ans ar- ara arb arc arg ari arm arn arr ars as- asa asb asc asg asi asm asn asr ass baa bab bac bag bai bam ban bar bas bba bbb bbc bbg bbi bbm bbn bbr bbs bca bcb bcc bcg bci bcm bcn bcr bcs bga bgb bgc bgg bgi bgm bgn bgr bgs bi- bia bib bic big bii bim bin bir bis bma bmb bmc bmg bmi bmm bmn bmr bms bna bnb bnc bng bni bnn bnr bns bra brb brg bri brm brn brr brs bsa bsb bsc bsg bsi bsm bsn bsr bss c-- caa cab cac cag cai cam can car cas cba cbb cbc cbg cbi cbm cbn cbr cbs cca ccb ccc ccg cci ccm ccn ccr ccs cga cgb cgc cgg cgi cgm cgn cgr cgs ci- cia cib cic cig cii cim cin cir cis cma cmb cmc cmg cmi cmm cmn cmr cms cn- cna cnb cnc cng cni cnm cnn cnr cns cra crb crc crg cri crm crn crr crs csa csb csc csg csi csm csn csr css gaa gab gac gag gai gam gan gar gas gba gbc gbg gbi gbm gbn gbr gbs gca gcb gcc gcg gci gcm gcn gcr gcs gga ggb ggc ggg ggi ggm ggn ggr ggs gia gib gic gig gii gim gin gir gis gma gmb gmc gmg gmi gmm gmn gmr gms gna gnb gnc gni gnm gnn gnr gns gra grb grc grg gri grm grn grr grs gsa gsb gsc gsg gsi gsm gsn gsr gss ia- iaa iab iac iag iai iam ian iar ias iba ibb ibc ibg ibi ibm ibn ibr ibs ica icb icc icg ici icm icn icr ics iga igb igc igg igi igm ign igr igs iia iib iic iii iim iin iir iis im- ima imb imc img imi imm imn ims in- ina inb inc ing ini inm inn inr ins ir- ira irb irc irg iri irm irn irr irs is- isa isb isc isg isi ism isn isr iss m-r maa mab mac mag mai mam man mar mas mba mbb mbc mbg mbi mbm mbr mbs mc- mca mcb mcc mcg mci mcm mcn mcr mcs mga mgb mgc mgi mgm mgn mgr mgs mi- mia mib mic mig mii mim min mir mis mma mmb mmc mmg mmi mmm mmn mmr mms mna mnb mnc mng mni mnm mnn mnr mns mra mrb mrc mrg mri mrm mrn mrr mrs msa msb msc msg msi msm msn msr mss n-i naa nab nac nag nai nam nan nar nas nba nbb nbc nbg nbi nbm nbn nbr nbs nca ncb ncc ncg nci ncm ncn ncr ncs nga ngb ngc ngg ngi ngm ngn ngs nia nib nic nig nii nim nin nir nis nma nmb nmc nmg nmi nmm nmn nmr nms nna nnb nnc nng nni nnm nnn nns nra nrb nrc nrg nri nrm nrn nrr nrs nsa nsb nsc nsg nsi nsm nsn nsr nss ra- raa rab rac rag rai ram ran rar ras rba rbb rbc rbg rbi rbm rbn rbr rbs rca rcb rcc rcg rci rcm rcn rcr rcs rga rgb rgc rgg rgi rgn rgr rgs ria rib ric rig rii rim rin rir ris rma rmb rmc rmg rmi rmm rmn rmr rms rna rnb rnc rng rni rnm rnn rnr rns rra rrb rrc rrg rri rrm rrn rrr rrs rsa rsb rsc rsg rsi rsm rsn rsr rss saa sab sac sag sai sam san sar sas sba sbb sbc sbg sbi sbm sbn sbr sbs sca scb scc scg sci scm scn scr scs sga sgb sgc sgg sgi sgm sgn sgr sgs sia sib sic sig sii sim sin sir sis sma smb smc smg smi smm smn smr sms sna snb snc sng sni snm snn snr sns sr- sra srb src srg sri srm srn srr srs ss- ssa ssb ssc ssg ssi ssm ssn ssr sss