a-a a-b a-i aaa aab aad aaf aag aai aan aao aar aas aau ab- aba abb abd abf abg abi abn abo abr abs abu ad- ada adb add adf adg adi adn ado adr ads adu af- afa afb afd aff afg afi afn afo afr afs afu ag- aga agb agd agf agg agi agn ago agr ags agu ai- aia aib aid aif aig aii ain aio air ais aiu an- ana anb and anf ang ani ann ano anr ans anu aoa aob aod aof aog aoi aon aoo aor aos aou ar- ara arb ard arf arg ari arn aro arr ars aru as- asa asb asd asf asg asi asn aso asr ass asu au- aua aub aud auf aug aui aun auo aur aus b-u baa bab bad baf bag bai ban bao bar bas bau bba bbb bbd bbf bbg bbi bbn bbo bbr bbs bbu bda bdb bdd bdf bdg bdi bdo bdr bds bdu bfa bfb bfd bff bfg bfi bfn bfo bfr bfs bfu bga bgb bgd bgf bgg bgi bgn bgo bgr bgs bgu bi- bia bib bid bif big bii bin bio bir bis biu bna bnb bnd bnf bng bni bnn bno bnr bns bnu boa bob bod bof bog boi bon boo bor bos bou bra brb brd brf brg bri brn bro brr brs bru bsa bsb bsd bsf bsg bsi bsn bso bsr bss bsu bua bub bud buf bug bui bun buo bur bus buu daa dab dad daf dag dai dan dao dar das dau dba dbb dbd dbf dbg dbi dbn dbo dbr dbs dbu dda ddb ddd ddf ddg ddi ddn ddo ddr dds ddu dfa dfb dfd dff dfg dfi dfn dfo dfr dfs dfu dga dgd dgf dgg dgi dgn dgr dgs dgu di- dia dib did dif dig dii din dio dir dis diu dna dnb dnd dnf dng dni dnn dno dnr dns doa dob dod dof dog doi don doo dor dos dou dra drb drd drg dri drn dro drr drs dru dsa dsb dsd dsf dsg dsi dsn dso dsr dss dsu dua dub dud duf dug dui dun duo dur dus faa fab fad faf fag fai fan fao far fas fau fba fbb fbd fbf fbg fbi fbn fbo fbr fbs fbu fda fdb fdd fdf fdg fdi fdn fdo fdr fds fdu ffa ffd fff ffg ffi ffn ffo ffr ffs ffu fga fgb fgd fgf fgg fgi fgn fgr fgs fia fib fid fif fig fii fin fir fis fiu fna fnb fnd fnf fng fni fnn fnr fns fnu foa fob fof fog foi fon foo for fos fou fra frb frd frf frg fri frn fro frr frs fru fsa fsb fsd fsf fsg fsi fsn fso fsr fss fsu fua fub fud fuf fug fui fun fuo fur fus fuu g-d gaa gab gad gaf gag gai gan gao gar gas gau gba gbd gbf gbg gbi gbn gbo gbr gbs gbu gda gdb gdd gdf gdi gdn gdo gdr gds gdu gfa gfb gfd gff gfi gfo gfr gfs gga ggb ggd ggg ggi ggn ggo ggr ggs ggu gia gib gid gif gig gii gin gio gir gis giu gna gnb gnd gnf gni gnn gno gnr gns gnu goa gob god gof gog goi gon goo gor gos gou gra grb grd grf grg gri grn gro grr grs gru gsa gsb gsd gsf gsg gsi gsn gso gsr gss gsu gu- gua gub gud guf gug gui gun guo gur gus guu i-d i-f ia- iaa iab iad iaf iag iai ian iao iar ias iau iba ibb ibd ibf ibg ibi ibn ibo ibr ibs ibu ida idb idd idf idg idi idn ido idr ids idu ifa ifb ifd iff ifg ifi ifn ifo ifr ifs ifu iga igb igd igf igg igi ign igo igr igs igu iia iib iid iif iii iin iio iir iis iiu in- ina inb ind inf ing ini inn ino inr ins inu io- ioa iob iod iof iog ioi ion ioo ior ios iou ir- ira irb ird irf irg iri irn iro irr irs iru is- isa isb isd isf isg isi isn iso isr iss isu iu- iua iub iud iug iui iur ius n-i naa nab nad naf nag nai nan nao nar nas nau nba nbb nbd nbf nbg nbi nbn nbo nbr nbs nbu nda ndb ndd ndf ndg ndi ndn ndo ndr nds ndu nfa nfb nfd nff nfi nfn nfo nfr nfs nfu nga ngb ngd ngf ngg ngi ngn ngo ngs ngu nia nib nid nif nig nii nin nio nir nis niu nna nnb nnf nng nni nnn nno nns nnu no- noa nob nod nof nog noi non noo nor nos nou nra nrb nrd nrf nrg nri nrn nro nrr nrs nru nsa nsb nsd nsf nsg nsi nsn nso nsr nss nsu nua nub nud nug nui nun nuo nur nus nuu o-i oaa oab oad oaf oag oai oan oao oar oas oau ob- oba obb obd obf obg obi obn obo obr obs obu oda odb odd odf odg odi odn odo odr ods odu of- ofa ofb ofd off ofg ofi ofn ofo ofr ofs ofu oga ogd ogf ogg ogi ogn ogo ogs oia oib oid oif oii oin oio oir ois oiu on- ona onb ond onf ong oni onn ono onr ons onu oo- ooa oob ood oof oog ooi oon ooo oor oos or- ora orb ord orf org ori orn oro orr ors oru os- osa osb osd osf osg osi osn oso osr oss osu ou- oua oud ouf oui oun ouo our ous ra- raa rab rad raf rag rai ran rao rar ras rau rba rbb rbd rbf rbg rbi rbn rbo rbr rbs rbu rda rdb rdd rdf rdg rdi rdn rdo rdr rds rdu rfa