a-a a-b a-i a-t aaa aab aad aaf aag aai aan aao aar aas aat ab- aba abb abd abf abg abi abn abo abr abs abt ad- ada adb add adf adg adi adn ado adr ads adt af- afa afb afd aff afg afi afn afo afr afs aft ag- aga agb agd agf agg agi agn ago agr ags agt ai- aia aib aid aif aig aii ain aio air ais ait an- ana anb and anf ang ani ann ano anr ans ant aoa aob aod aof aog aoi aon aoo aor aos aot ar- ara arb ard arf arg ari arn aro arr ars art as- asa asb asd asf asg asi asn aso asr ass ast at- ata atb atd atf atg ati atn ato atr ats att baa bab bad baf bag bai ban bao bar bas bat bba bbb bbd bbf bbg bbi bbn bbo bbr bbs bbt bda bdb bdd bdf bdg bdi bdo bdr bds bdt bfa bfb bfd bff bfg bfi bfn bfo bfr bfs bft bga bgb bgd bgf bgg bgi bgn bgo bgr bgs bgt bi- bia bib bid bif big bii bin bio bir bis bit bna bnb bnd bnf bng bni bnn bno bnr bns bnt boa bob bod bof bog boi bon boo bor bos bot bra brb brd brf brg bri brn bro brr brs brt bsa bsb bsd bsf bsg bsi bsn bso bsr bss bst bta btb btd btf btg bti btn bto btr bts btt daa dab dad daf dag dai dan dao dar das dat dba dbb dbd dbf dbg dbi dbn dbo dbr dbs dbt dda ddb ddd ddf ddg ddi ddn ddo ddr dds ddt dfa dfb dfd dff dfg dfi dfn dfo dfr dfs dft dga dgd dgf dgg dgi dgn dgr dgs dgt di- dia dib did dif dig dii din dio dir dis dit dna dnb dnd dnf dng dni dnn dno dnr dns dnt doa dob dod dof dog doi don doo dor dos dot dra drb drd drg dri drn dro drr drs drt dsa dsb dsd dsf dsg dsi dsn dso dsr dss dst dta dtb dtd dtf dtg dti dtn dto dtr dts dtt faa fab fad faf fag fai fan fao far fas fat fba fbb fbd fbf fbg fbi fbn fbo fbr fbs fbt fda fdb fdd fdf fdg fdi fdn fdo fdr fds fdt ffa ffd fff ffg ffi ffn ffo ffr ffs fft fga fgb fgd fgf fgg fgi fgn fgr fgs fgt fia fib fid fif fig fii fin fir fis fit fna fnb fnd fnf fng fni fnn fnr fns fnt foa fob fof fog foi fon foo for fos fot fra frb frd frf frg fri frn fro frr frs frt fsa fsb fsd fsf fsg fsi fsn fso fsr fss fst fta ftb ftd ftf ftg fti ftn fto ftr fts ftt g-d gaa gab gad gaf gag gai gan gao gar gas gat gba gbd gbf gbg gbi gbn gbo gbr gbs gbt gda gdb gdd gdf gdi gdn gdo gdr gds gdt gfa gfb gfd gff gfi gfo gfr gfs gft gga ggb ggd ggg ggi ggn ggo ggr ggs ggt gia gib gid gif gig gii gin gio gir gis git gna gnb gnd gnf gni gnn gno gnr gns gnt goa gob god gof gog goi gon goo gor gos got gra grb grd grf grg gri grn gro grr grs grt gsa gsb gsd gsf gsg gsi gsn gso gsr gss gst gta gtb gtd gtf gtg gti gtn gto gtr gts gtt i-d i-f ia- iaa iab iad iaf iag iai ian iao iar ias iat iba ibb ibd ibf ibg ibi ibn ibo ibr ibs ibt ida idb idd idf idg idi idn ido idr ids idt ifa ifb ifd iff ifg ifi ifn ifo ifr ifs ift iga igb igd igf igg igi ign igo igr igs igt iia iib iid iif iii iin iio iir iis iit in- ina inb ind inf ing ini inn ino inr ins int io- ioa iob iod iof iog ioi ion ioo ior ios iot ir- ira irb ird irf irg iri irn iro irr irs irt is- isa isb isd isf isg isi isn iso isr iss ist ita itb itd itf itg iti itn ito its itt n-i naa nab nad naf nag nai nan nao nar nas nat nba nbb nbd nbf nbg nbi nbn nbo nbr nbs nbt nda ndb ndd ndf ndg ndi ndn ndo ndr nds ndt nfa nfb nfd nff nfi nfn nfo nfr nfs nft nga ngb ngd ngf ngg ngi ngn ngo ngs ngt nia nib nid nif nig nii nin nio nir nis nit nna nnb nnf nng nni nnn nno nns nnt no- noa nob nod nof nog noi non noo nor nos not nra nrb nrd nrf nrg nri nrn nro nrr nrs nrt nsa nsb nsd nsf nsg nsi nsn nso nsr nss nst nta ntb ntd ntf ntg nti ntn nto ntr nts ntt o-i oaa oab oad oaf oag oai oan oao oar oas oat ob- oba obb obd obf obg obi obn obo obr obs obt oda odb odd odf odg odi odn odo odr ods odt of- ofa ofb ofd off ofg ofi ofn ofo ofr ofs oft oga ogd ogf ogg ogi ogn ogo ogs ogt oia oib oid oif oii oin oio oir ois oit on- ona onb ond onf ong oni onn ono onr ons ont oo- ooa oob ood oof oog ooi oon ooo oor oos oot or- ora orb ord orf org ori orn oro orr ors ort os- osa osb osd osf osg osi osn oso osr oss ost ot- ota otb otd otf otg oti otn oto otr ots ott ra- raa rab rad raf rag rai ran rao rar ras rat rba rbb rbd rbf rbg rbi rbn rbo rbr rbs rbt