-ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aam aan aao aas aat ab- aba abb abc abe abf abi abm abn abo abs abt ac- aca acb acc ace acf aci acm acn aco acs act aea aeb aec aee aef aei aem aen aeo aes aet af- afa afb afc afe aff afi afm afn afo afs aft ai- aia aib aic aie aif aii aim ain aio ais ait ama amb amc ame amf ami amm amn amo ams amt an- ana anb anc ane anf ani anm ann ano ans ant aoa aob aoc aoe aof aoi aom aon aoo aos aot as- asa asb asc ase asf asi asm asn aso ass ast at- ata atb atc ate atf ati atm atn ato ats att baa bab bac bae baf bai bam ban bao bas bat bba bbb bbc bbe bbf bbi bbm bbn bbo bbs bbt bca bcb bcc bce bcf bci bcm bcn bco bcs bct be- bea beb bec bee bef bei bem ben beo bes bet bfa bfb bfc bfe bff bfi bfm bfn bfo bfs bft bi- bia bib bic bie bif bii bim bin bio bis bit bma bmb bmc bme bmf bmi bmm bmn bmo bms bmt bna bnb bnc bne bnf bni bnn bno bns bnt boa bob boc boe bof boi bom bon boo bos bot bsa bsb bsc bse bsf bsi bsm bsn bso bss bst bta btb btc bte btf bti btm btn bto bts btt c-- caa cab cac cae caf cai cam can cao cas cat cba cbb cbc cbe cbf cbi cbm cbn cbo cbs cbt cca ccb ccc cce ccf cci ccm ccn cco ccs cct ce- cea ceb cec cee cef cei cem cen ceo ces cet cfa cfb cfc cfe cff cfi cfm cfn cfo cfs cft ci- cia cib cic cie cif cii cim cin cio cis cit cma cmb cmc cme cmf cmi cmm cmn cmo cms cmt cn- cna cnb cnc cne cnf cni cnm cnn cno cns cnt co- coa cob coc coe cof coi com con coo cos cot csa csb csc cse csf csi csm csn cso css cst cta ctb ctc cte ctf cti ctm ctn cto cts ctt eaa eab eac eae eaf eai eam ean eao eas eat eba ebb ebc ebe ebf ebi ebm ebn ebo ebs ebt ec- eca ecb ecc ece ecf eci ecm ecn eco ecs ect eea eeb eec eee eef eem een eeo ees eet ef- efa efb efc efe eff efi efm efo efs eft eia eib eic eie eif eii eim ein eio eis eit em- ema emb emc eme emf emi emm emn emo ems emt en- ena enb enc ene enf eni enm enn eno ens ent eo- eoa eob eoc eoe eof eoi eom eon eoo eos eot es- esa esb esc ese esf esi esm esn eso ess est eta etb etc ete etf eti etm etn eto ets ett faa fab fac fae faf fai fam fan fao fas fat fba fbb fbc fbe fbf fbi fbm fbn fbo fbs fbt fca fcb fcc fce fcf fci fcm fcn fco fcs fct fea feb fec fee fef fei fem fen feo fes fet ffa ffc ffe fff ffi ffm ffn ffo ffs fft fia fib fic fie fif fii fim fin fis fit fma fmb fmc fme fmf fmi fmm fmn fmo fms fmt fna fnb fnc fne fnf fni fnm fnn fns fnt foa fob foc foe fof foi fom fon foo fos fot fsa fsb fsc fse fsf fsi fsm fsn fso fss fst fta ftb ftc fte ftf fti ftm ftn fto fts ftt i-f ia- iaa iab iac iae iaf iai iam ian iao ias iat iba ibb ibc ibe ibf ibi ibm ibn ibo ibs ibt ica icb icc ice icf ici icm icn ico ics ict ie- iea iec iee ief iei iem ien ies iet ifa ifb ifc ife iff ifi ifm ifn ifo ifs ift iia iib iic iie iif iii iim iin iio iis iit im- ima imb imc ime imf imi imm imn imo ims imt in- ina inb inc ine inf ini inm inn ino ins int io- ioa iob ioc ioe iof ioi iom ion ioo ios iot is- isa isb isc ise isf isi ism isn iso iss ist ita itb itc ite itf iti itm itn ito its itt m-f m-o maa mab mac mae maf mai mam man mao mas mat mba mbb mbc mbe mbf mbi mbm mbo mbs mbt mc- mca mcb mcc mce mcf mci mcm mcn mco mcs mct mea meb mec mee mef mei mem men meo mes met mfa mfb mfc mfe mff mfi mfm mfn mfo mfs mft mi- mia mib mic mie mif mii mim min mio mis mit mma mmb mmc mme mmf mmi mmm mmn mmo mms mmt mna mnb mnc mne mnf mni mnm mnn mno mns mnt moa mob moc moe mof moi mom mon moo mos mot msa msb msc mse msf msi msm msn mso mss mst mta mtb mtc mte mtf mti mtm mtn mto mts mtt n-i naa nab nac nae naf nai nam nan nao nas nat nba nbb nbc nbe nbf nbi nbm nbn nbo nbs nbt nca ncb ncc nce ncf nci ncm ncn nco ncs nct ne- nea neb nec nee nef nei nem nen neo nes net nfa nfb nfc nfe nff nfi nfn nfo nfs nft nia nib nic nie nif nii nim nin nio nis nit nma nmb nmc nme nmi nmm nmn nmo nms nmt nna nnb nnc nne nnf nni nnm nnn nno nns nnt no- noa nob noc noe nof noi nom non noo nos not nsa nsb nsc nse nsf nsi nsm nsn nso nss nst nta ntb ntc nte ntf nti ntm ntn nto nts ntt o-i oaa oab