-ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aag aai aak aan aao aas aat ab- aba abb abc abe abf abg abi abk abn abo abs abt ac- aca acb acc ace acf acg aci ack acn aco acs act aea aeb aec aee aef aeg aei aek aen aeo aes aet af- afa afb afc afe aff afg afi afk afn afo afs aft ag- aga agb agc age agf agg agi agk agn ago ags agt ai- aia aib aic aie aif aig aii aik ain aio ais ait aka akb akc ake akg aki akk akn ako aks an- ana anb anc ane anf ang ani ank ann ano ans ant aoa aob aoc aoe aof aog aoi aok aon aoo aos aot as- asa asb asc ase asf asg asi ask asn aso ass ast at- ata atb atc ate atf atg ati atn ato ats att baa bab bac bae baf bag bai bak ban bao bas bat bba bbb bbc bbe bbf bbg bbi bbk bbn bbo bbs bbt bca bcb bcc bce bcf bcg bci bck bcn bco bcs bct be- bea beb bec bee bef beg bei bek ben beo bes bet bfa bfb bfc bfe bff bfg bfi bfn bfo bfs bft bga bgb bgc bge bgf bgg bgi bgk bgn bgo bgs bgt bi- bia bib bic bie bif big bii bik bin bio bis bit bka bkb bkc bke bkf bkg bkk bkn bko bks bkt bna bnb bnc bne bnf bng bni bnk bnn bno bns bnt boa bob boc boe bof bog boi bok bon boo bos bot bsa bsb bsc bse bsf bsg bsi bsk bsn bso bss bst bta btb btc bte btf btg bti btk btn bto bts btt c-- caa cab cac cae caf cag cai cak can cao cas cat cba cbb cbc cbe cbf cbg cbi cbk cbn cbo cbs cbt cca ccb ccc cce ccf ccg cci cck ccn cco ccs cct ce- cea ceb cec cee cef ceg cei cek cen ceo ces cet cfa cfb cfc cfe cff cfg cfi cfk cfn cfo cfs cft cga cgb cgc cge cgg cgi cgn cgo cgs cgt ci- cia cib cic cie cif cig cii cik cin cio cis cit cka ckb ckc cki cko cks ckt cn- cna cnb cnc cne cnf cng cni cnn cno cns cnt co- coa cob coc coe cof cog coi cok con coo cos cot csa csb csc cse csf csg csi csk csn cso css cst cta ctb ctc cte ctf ctg cti ctk ctn cto cts ctt eaa eab eac eae eaf eag eai eak ean eao eas eat eba ebb ebc ebe ebf ebg ebi ebk ebn ebo ebs ebt ec- eca ecb ecc ece ecf ecg eci eck ecn eco ecs ect eea eeb eec eee eef eeg eek een eeo ees eet ef- efa efb efc efe eff efg efi efo efs eft ega egb egc ege egf egg egi egn ego egs egt eia eib eic eie eif eig eii eik ein eio eis eit eka ekb ekc eke ekf ekg eki eko eks ekt en- ena enb enc ene enf eng eni enk enn eno ens ent eo- eoa eob eoc eoe eof eog eoi eok eon eoo eos eot es- esa esb esc ese esf esg esi esk esn eso ess est eta etb etc ete etf etg eti etk etn eto ets ett faa fab fac fae faf fag fai fak fan fao fas fat fba fbb fbc fbe fbf fbg fbi fbk fbn fbo fbs fbt fca fcb fcc fce fcf fcg fci fck fcn fco fcs fct fea feb fec fee fef feg fei fek fen feo fes fet ffa ffc ffe fff ffg ffi ffk ffn ffo ffs fft fga fgb fgc fge fgf fgg fgi fgn fgs fgt fia fib fic fie fif fig fii fik fin fis fit fka fkb fkc fkf fkg fki fkk fkt fna fnb fnc fne fnf fng fni fnk fnn fns fnt foa fob foc foe fof fog foi fok fon foo fos fot fsa fsb fsc fse fsf fsg fsi fsk fsn fso fss fst fta ftb ftc fte ftf ftg fti ftk ftn fto fts ftt gaa gab gac gae gaf gag gai gak gan gao gas gat gba gbc gbe gbf gbg gbi gbk gbn gbo gbs gbt gca gcb gcc gce gcf gcg gci gck gcn gco gcs gct ge- gea geb gec gee gef geg gei gek gen geo ges get gfa gfb gfc gfe gff gfi gfk gfo gfs gft gga ggb ggc ggg ggi ggn ggo ggs ggt gia gib gic gie gif gig gii gik gin gio gis git gka gkb gkn gko gks gkt gna gnb gnc gne gnf gni gnn gno gns gnt goa gob goc goe gof gog goi gok gon goo gos got gsa gsb gsc gse gsf gsg gsi gsk gsn gso gss gst gta gtb gtc gte gtf gtg gti gtk gtn gto gts gtt i-f ia- iaa iab iac iae iaf iag iai ian iao ias iat iba ibb ibc ibe ibf ibg ibi ibk ibn ibo ibs ibt ica icb icc ice icf icg ici ick icn ico ics ict ie- iea iec iee ief ieg iei iek ien ies iet ifa ifb ifc ife iff ifg ifi ifn ifo ifs ift iga igb igc ige igf igg igi igk ign igo igs igt iia iib iic iie iif iii iin iio iis iit ika ikb ikc ike ikf iki ikk iko iks ikt in- ina inb inc ine inf ing ini ink inn ino ins int io- ioa iob ioc ioe iof iog ioi ion ioo ios iot is- isa isb isc ise isf isg isi isk isn iso iss ist ita itb itc ite itf itg iti itk itn ito its itt k-t ka- kaa kab kac kae kaf kag kai kak