a-a a-b a-i aaa aab aae aag aai aam aan aas ab- aba abb abe abg abi abm abn abs aea aeb aee aeg aei aem aen aes ag- aga agb age agg agi agm agn ags ai- aia aib aie aig aii aim ain ais ama amb ame amg ami amm amn ams an- ana anb ane ang ani anm ann ans as- asa asb ase asg asi asm asn ass baa bab bae bag bai bam ban bas bba bbb bbe bbg bbi bbm bbn bbs be- bea beb bee beg bei bem ben bes bga bgb bge bgg bgi bgm bgn bgs bi- bia bib bie big bii bim bin bis bma bmb bme bmg bmi bmm bmn bms bna bnb bne bng bni bnn bns bsa bsb bse bsg bsi bsm bsn bss eaa eab eae eag eai eam ean eas eba ebb ebe ebg ebi ebm ebn ebs eea eeb eee eeg eem een ees ega egb ege egg egi egm egn egs eia eib eie eig eii eim ein eis em- ema emb eme emg emi emm emn ems en- ena enb ene eng eni enm enn ens es- esa esb ese esg esi esm esn ess gaa gab gae gag gai gam gan gas gba gbe gbg gbi gbm gbn gbs ge- gea geb gee geg gei gem gen ges gga ggb ggg ggi ggm ggn ggs gia gib gie gig gii gim gin gis gma gmb gme gmg gmi gmm gmn gms gna gnb gne gni gnm gnn gns gsa gsb gse gsg gsi gsm gsn gss ia- iaa iab iae iag iai iam ian ias iba ibb ibe ibg ibi ibm ibn ibs ie- iea iee ieg iei iem ien ies iga igb ige igg igi igm ign igs iia iib iie iii iim iin iis im- ima imb ime img imi imm imn ims in- ina inb ine ing ini inm inn ins is- isa isb ise isg isi ism isn iss maa mab mae mag mai mam man mas mba mbb mbe mbg mbi mbm mbs mea meb mee meg mei mem men mes mga mgb mge mgi mgm mgn mgs mi- mia mib mie mig mii mim min mis mma mmb mme mmg mmi mmm mmn mms mna mnb mne mng mni mnm mnn mns msa msb mse msg msi msm msn mss n-i naa nab nae nag nai nam nan nas nba nbb nbe nbg nbi nbm nbn nbs ne- nea neb nee neg nei nem nen nes nga ngb nge ngg ngi ngm ngn ngs nia nib nie nig nii nim nin nis nma nmb nme nmg nmi nmm nmn nms nna nnb nne nng nni nnm nnn nns nsa nsb nse nsg nsi nsm nsn nss saa sab sae sag sai sam san sas sba sbb sbe sbg sbi sbm sbn sbs se- sea seb see seg sei sem sen ses sga sgb sge sgg sgi sgm sgn sgs sia sib sie sig sii sim sin sis sma smb sme smg smi smm smn sms sna snb sne sng sni snm snn sns ss- ssa ssb sse ssg ssi ssm ssn sss