a-a a-b a-i aaa aab aae aaf aag aai aam aan aao aas ab- aba abb abe abf abg abi abm abn abo abs aea aeb aee aef aeg aei aem aen aeo aes af- afa afb afe aff afg afi afm afn afo afs ag- aga agb age agf agg agi agm agn ago ags ai- aia aib aie aif aig aii aim ain aio ais ama amb ame amf amg ami amm amn amo ams an- ana anb ane anf ang ani anm ann ano ans aoa aob aoe aof aog aoi aom aon aoo aos as- asa asb ase asf asg asi asm asn aso ass baa bab bae baf bag bai bam ban bao bas bba bbb bbe bbf bbg bbi bbm bbn bbo bbs be- bea beb bee bef beg bei bem ben beo bes bfa bfb bfe bff bfg bfi bfm bfn bfo bfs bga bgb bge bgf bgg bgi bgm bgn bgo bgs bi- bia bib bie bif big bii bim bin bio bis bma bmb bme bmf bmg bmi bmm bmn bmo bms bna bnb bne bnf bng bni bnn bno bns boa bob boe bof bog boi bom bon boo bos bsa bsb bse bsf bsg bsi bsm bsn bso bss eaa eab eae eaf eag eai eam ean eao eas eba ebb ebe ebf ebg ebi ebm ebn ebo ebs eea eeb eee eef eeg eem een eeo ees ef- efa efb efe eff efg efi efm efo efs ega egb ege egf egg egi egm egn ego egs eia eib eie eif eig eii eim ein eio eis em- ema emb eme emf emg emi emm emn emo ems en- ena enb ene enf eng eni enm enn eno ens eo- eoa eob eoe eof eog eoi eom eon eoo eos es- esa esb ese esf esg esi esm esn eso ess faa fab fae faf fag fai fam fan fao fas fba fbb fbe fbf fbg fbi fbm fbn fbo fbs fea feb fee fef feg fei fem fen feo fes ffa ffe fff ffg ffi ffm ffn ffo ffs fga fgb fge fgf fgg fgi fgm fgn fgs fia fib fie fif fig fii fim fin fis fma fmb fme fmf fmg fmi fmm fmn fmo fms fna fnb fne fnf fng fni fnm fnn fns foa fob foe fof fog foi fom fon foo fos fsa fsb fse fsf fsg fsi fsm fsn fso fss gaa gab gae gaf gag gai gam gan gao gas gba gbe gbf gbg gbi gbm gbn gbo gbs ge- gea geb gee gef geg gei gem gen geo ges gfa gfb gfe gff gfi gfm gfo gfs gga ggb ggg ggi ggm ggn ggo ggs gia gib gie gif gig gii gim gin gio gis gma gmb gme gmf gmg gmi gmm gmn gmo gms gna gnb gne gnf gni gnm gnn gno gns goa gob goe gof gog goi gom gon goo gos gsa gsb gse gsf gsg gsi gsm gsn gso gss i-f ia- iaa iab iae iaf iag iai iam ian iao ias iba ibb ibe ibf ibg ibi ibm ibn ibo ibs ie- iea iee ief ieg iei iem ien ies ifa ifb ife iff ifg ifi ifm ifn ifo ifs iga igb ige igf igg igi igm ign igo igs iia iib iie iif iii iim iin iio iis im- ima imb ime imf img imi imm imn imo ims in- ina inb ine inf ing ini inm inn ino ins io- ioa iob ioe iof iog ioi iom ion ioo ios is- isa isb ise isf isg isi ism isn iso iss m-f m-o maa mab mae maf mag mai mam man mao mas mba mbb mbe mbf mbg mbi mbm mbo mbs mea meb mee mef meg mei mem men meo mes mfa mfb mfe mff mfg mfi mfm mfn mfo mfs mga mgb mge mgf mgi mgm mgn mgo mgs mi- mia mib mie mif mig mii mim min mio mis mma mmb mme mmf mmg mmi mmm mmn mmo mms mna mnb mne mnf mng mni mnm mnn mno mns moa mob moe mof mog moi mom mon moo mos msa msb mse msf msg msi msm msn mso mss n-i naa nab nae naf nag nai nam nan nao nas nba nbb nbe nbf nbg nbi nbm nbn nbo nbs ne- nea neb nee nef neg nei nem nen neo nes nfa nfb nfe nff nfi nfn nfo nfs nga ngb nge ngf ngg ngi ngm ngn ngo ngs nia nib nie nif nig nii nim nin nio nis nma nmb nme nmg nmi nmm nmn nmo nms nna nnb nne nnf nng nni nnm nnn nno nns no- noa nob noe nof nog noi nom non noo nos nsa nsb nse nsf nsg nsi nsm nsn nso nss o-i oaa oab oae oaf oag oai oam oan oao oas ob- oba obb obe obf obg obi obm obn obo obs oea oeb oee oef oeg oei oem oen oeo oes of- ofa ofb ofe off ofg ofi ofm ofn ofo ofs oga oge ogf ogg ogi ogn ogo ogs oia oib oie oif oii oim oin oio ois om- oma omb ome omf omg omi omm omn omo oms on- ona onb one onf ong oni onn ono ons oo- ooa oob oof oog ooi oom oon ooo oos os- osa osb ose osf osg osi osm osn oso oss saa sab sae saf sag sai sam san sao sas sba sbb sbe sbf sbg sbi sbm sbn sbo sbs se- sea seb see sef seg sei sem sen seo ses sfa sfb sfe sff sfg sfi sfm sfn sfo sfs sga sgb sge sgf sgg sgi sgm sgn sgo sgs sia sib sie sif sig sii sim sin sio sis sma smb sme smf smg smi smm smn smo sms sna snb sne snf sng sni snm snn sno sns soa sob soe sof sog soi som son