a-a a-b a-i a-t aaa aab aad aag aai aan aas aat ab- aba abb abd abg abi abn abs abt ad- ada adb add adg adi adn ads adt ag- aga agb agd agg agi agn ags agt ai- aia aib aid aig aii ain ais ait an- ana anb and ang ani ann ans ant as- asa asb asd asg asi asn ass ast at- ata atb atd atg ati atn ats att baa bab bad bag bai ban bas bat bba bbb bbd bbg bbi bbn bbs bbt bda bdb bdd bdg bdi bds bdt bga bgb bgd bgg bgi bgn bgs bgt bi- bia bib bid big bii bin bis bit bna bnb bnd bng bni bnn bns bnt bsa bsb bsd bsg bsi bsn bss bst bta btb btd btg bti btn bts btt daa dab dad dag dai dan das dat dba dbb dbd dbg dbi dbn dbs dbt dda ddb ddd ddg ddi ddn dds ddt dga dgd dgg dgi dgn dgs dgt di- dia dib did dig dii din dis dit dna dnb dnd dng dni dnn dns dnt dsa dsb dsd dsg dsi dsn dss dst dta dtb dtd dtg dti dtn dts dtt g-d gaa gab gad gag gai gan gas gat gba gbd gbg gbi gbn gbs gbt gda gdb gdd gdi gdn gds gdt gga ggb ggd ggg ggi ggn ggs ggt gia gib gid gig gii gin gis git gna gnb gnd gni gnn gns gnt gsa gsb gsd gsg gsi gsn gss gst gta gtb gtd gtg gti gtn gts gtt i-d ia- iaa iab iad iag iai ian ias iat iba ibb ibd ibg ibi ibn ibs ibt ida idb idd idg idi idn ids idt iga igb igd igg igi ign igs igt iia iib iid iii iin iis iit in- ina inb ind ing ini inn ins int is- isa isb isd isg isi isn iss ist ita itb itd itg iti itn its itt n-i naa nab nad nag nai nan nas nat nba nbb nbd nbg nbi nbn nbs nbt nda ndb ndd ndg ndi ndn nds ndt nga ngb ngd ngg ngi ngn ngs ngt nia nib nid nig nii nin nis nit nna nnb nng nni nnn nns nnt nsa nsb nsd nsg nsi nsn nss nst nta ntb ntd ntg nti ntn nts ntt saa sab sad sag sai san sas sat sba sbb sbd sbg sbi sbn sbs sbt sda sdb sdd sdg sdi sdn sds sdt sga sgb sgd sgg sgi sgn sgs sgt sia sib sid sig sii sin sis sit sna snb snd sng sni snn sns snt ss- ssa ssb ssd ssg ssi ssn sss sst sta stb std stg sti stn sts stt taa tab tad tag tai tan tas tat tba tbb tbd tbg tbi tbn tbs tbt tda tdb tdd tdg tdi tdn tds tdt tga tgb tgg tgi tgn tgs tgt tia tib tid tig tii tin tis tit tna tnb tnd tng tni tnn tns tnt tsa tsb tsd tsg tsi tsn tss tst tta ttb ttd ttg tti ttn tts ttt