-ic a-a a-b a-c a-i a-t aaa aab aac aae aai aam aan aao aas aat ab- aba abb abc abe abi abm abn abo abs abt ac- aca acb acc ace aci acm acn aco acs act aea aeb aec aee aei aem aen aeo aes aet ai- aia aib aic aie aii aim ain aio ais ait ama amb amc ame ami amm amn amo ams amt an- ana anb anc ane ani anm ann ano ans ant aoa aob aoc aoe aoi aom aon aoo aos aot as- asa asb asc ase asi asm asn aso ass ast at- ata atb atc ate ati atm atn ato ats att baa bab bac bae bai bam ban bao bas bat bba bbb bbc bbe bbi bbm bbn bbo bbs bbt bca bcb bcc bce bci bcm bcn bco bcs bct be- bea beb bec bee bei bem ben beo bes bet bi- bia bib bic bie bii bim bin bio bis bit bma bmb bmc bme bmi bmm bmn bmo bms bmt bna bnb bnc bne bni bnn bno bns bnt boa bob boc boe boi bom bon boo bos bot bsa bsb bsc bse bsi bsm bsn bso bss bst bta btb btc bte bti btm btn bto bts btt c-- caa cab cac cae cai cam can cao cas cat cba cbb cbc cbe cbi cbm cbn cbo cbs cbt cca ccb ccc cce cci ccm ccn cco ccs cct ce- cea ceb cec cee cei cem cen ceo ces cet ci- cia cib cic cie cii cim cin cio cis cit cma cmb cmc cme cmi cmm cmn cmo cms cmt cn- cna cnb cnc cne cni cnm cnn cno cns cnt co- coa cob coc coe coi com con coo cos cot csa csb csc cse csi csm csn cso css cst cta ctb ctc cte cti ctm ctn cto cts ctt eaa eab eac eae eai eam ean eao eas eat eba ebb ebc ebe ebi ebm ebn ebo ebs ebt ec- eca ecb ecc ece eci ecm ecn eco ecs ect eea eeb eec eee eem een eeo ees eet eia eib eic eie eii eim ein eio eis eit em- ema emb emc eme emi emm emn emo ems emt en- ena enb enc ene eni enm enn eno ens ent eo- eoa eob eoc eoe eoi eom eon eoo eos eot es- esa esb esc ese esi esm esn eso ess est eta etb etc ete eti etm etn eto ets ett ia- iaa iab iac iae iai iam ian iao ias iat iba ibb ibc ibe ibi ibm ibn ibo ibs ibt ica icb icc ice ici icm icn ico ics ict ie- iea iec iee iei iem ien ies iet iia iib iic iie iii iim iin iio iis iit im- ima imb imc ime imi imm imn imo ims imt in- ina inb inc ine ini inm inn ino ins int io- ioa iob ioc ioe ioi iom ion ioo ios iot is- isa isb isc ise isi ism isn iso iss ist ita itb itc ite iti itm itn ito its itt m-o maa mab mac mae mai mam man mao mas mat mba mbb mbc mbe mbi mbm mbo mbs mbt mc- mca mcb mcc mce mci mcm mcn mco mcs mct mea meb mec mee mei mem men meo mes met mi- mia mib mic mie mii mim min mio mis mit mma mmb mmc mme mmi mmm mmn mmo mms mmt mna mnb mnc mne mni mnm mnn mno mns mnt moa mob moc moe moi mom mon moo mos mot msa msb msc mse msi msm msn mso mss mst mta mtb mtc mte mti mtm mtn mto mts mtt n-i naa nab nac nae nai nam nan nao nas nat nba nbb nbc nbe nbi nbm nbn nbo nbs nbt nca ncb ncc nce nci ncm ncn nco ncs nct ne- nea neb nec nee nei nem nen neo nes net nia nib nic nie nii nim nin nio nis nit nma nmb nmc nme nmi nmm nmn nmo nms nmt nna nnb nnc nne nni nnm nnn nno nns nnt no- noa nob noc noe noi nom non noo nos not nsa nsb nsc nse nsi nsm nsn nso nss nst nta ntb ntc nte nti ntm ntn nto nts ntt o-i oaa oab oac oae oai oam oan oao oas oat ob- oba obb obc obe obi obm obn obo obs obt oc- oca ocb occ oci ocm ocn oco ocs oct oea oeb oec oee oei oem oen oeo oes oet oia oib oic oie oii oim oin oio ois oit om- oma omb omc ome omi omm omn omo oms omt on- ona onb onc one oni onn ono ons ont oo- ooa oob ooc ooi oom oon ooo oos oot os- osa osb osc ose osi osm osn oso oss ost ot- ota otb otc ote oti otm otn oto ots ott saa sab sac sae sai sam san sao sas sat sba sbb sbc sbe sbi sbm sbn sbo sbs sbt sca scb scc sce sci scm scn sco scs sct se- sea seb sec see sei sem sen seo ses set sia sib sic sie sii sim sin sio sis sit sma smb smc sme smi smm smn smo sms smt sna snb snc sne sni snm snn sno sns snt soa sob soc soe soi som son soo sos sot ss- ssa ssb ssc sse ssi ssm ssn sso sss sst sta stb stc ste sti stm stn sto sts stt taa tab tac tae tai tam tan tao tas tat tba tbb tbc tbe tbi tbm tbn tbo tbs tbt tca tcb tcc tce tci tcm tcn tco tcs tct te- tea teb tec tee tei tem ten teo tes tet tia tib tic tie tii tim tin tio tis tit tma tmb tmc tme tmi tmm tmn tmo tms tmt tna