-er -ic -th a-a a-b a-c a-i a-t aaa aab aac aae aah aai aap aar aas aat ab- aba abb abc abe abh abi abp abr abs abt ac- aca acb acc ace ach aci acp acr acs act aea aeb aec aee aeh aei aep aer aes aet aha ahb ahc ahe ahh ahi ahp ahr ahs aht ai- aia aib aic aie aih aii aip air ais ait ap- apa apb apc ape aph api app apr aps apt ar- ara arb arc are arh ari arp arr ars art as- asa asb asc ase ash asi asp asr ass ast at- ata atb atc ate ath ati atp atr ats att b-p baa bab bac bae bah bai bap bar bas bat bba bbb bbc bbe bbh bbi bbp bbr bbs bbt bca bcb bcc bce bch bci bcp bcr bcs bct be- bea beb bec bee beh bei bep ber bes bet bha bhb bhc bhe bhh bhi bhp bhr bhs bht bi- bia bib bic bie bih bii bip bir bis bit bpa bpb bpc bpe bph bpi bpp bpr bps bpt bra brb bre brh bri brp brr brs brt bsa bsb bsc bse bsh bsi bsp bsr bss bst bta btb btc bte bth bti btp btr bts btt c-- caa cab cac cae cah cai cap car cas cat cba cbb cbc cbe cbh cbi cbp cbr cbs cbt cca ccb ccc cce cch cci ccp ccr ccs cct ce- cea ceb cec cee ceh cei cep cer ces cet ch- cha chb chc che chh chi chp chr chs cht ci- cia cib cic cie cih cii cip cir cis cit cpa cpb cpc cpe cph cpi cpp cpr cps cpt cra crb crc cre crh cri crp crr crs crt csa csb csc cse csh csi csp csr css cst cta ctb ctc cte cth cti ctp ctr cts ctt eaa eab eac eae eah eai eap ear eas eat eba ebb ebc ebe ebh ebi ebp ebr ebs ebt ec- eca ecb ecc ece ech eci ecr ecs ect eea eeb eec eee eep eer ees eet eha ehb ehc ehe ehh ehi ehp ehr ehs eht eia eib eic eie eii eip eir eis eit ep- epa epb epc epe eph epi epp epr eps ept era erb erc ere erh eri erp err ers ert es- esa esb esc ese esh esi esp esr ess est eta etb etc ete eth eti etp etr ets ett h-i haa hab hac hae hah hai hap har has hat hba hbb hbc hbe hbh hbi hbp hbr hbs hbt hca hcb hcc hce hch hci hcp hcr hcs hct he- hea heb hec hee heh hei hep her hes het hha hhb hhc hhe hhh hhi hhp hhr hhs hht hia hib hic hie hih hii hip hir his hit hpa hpb hpc hpe hph hpi hpp hpr hps hpt hr- hra hrb hrc hre hrh hri hrp hrr hrs hrt hsa hsb hsc hse hsh hsi hsp hsr hss hst hta htb htc hte hth hti htp htr hts htt ia- iaa iab iac iae iah iai iap iar ias iat iba ibb ibc ibe ibh ibi ibp ibr ibs ibt ica icb icc ice ich ici icp icr ics ict ie- iea iec iee iei iep ier ies iet iha ihb ihc ihe ihh ihi ihp ihr ihs iht iia iib iic iie iih iii iip iir iis iit ipa ipb ipc ipe ipi ipp ipr ips ipt ir- ira irb irc ire iri irp irr irs irt is- isa isb isc ise ish isi isp isr iss ist ita itb itc ite ith iti itp its itt p-p paa pab pac pae pah pai pap par pas pat pba pbb pbc pbe pbi pbp pbr pbs pbt pca pcb pcc pce pch pci pcp pcr pcs pct pea peb pec pee peh pei pep per pes pet pha phb phc phe phi php phr phs pht pia pib pic pie pih pii pip pir pis pit ppa ppb ppc ppe pph ppi ppp ppr pps ppt pra prb prc pre prh pri prp prr prs prt ps- psa psb psc pse psh psi psp psr pss pst pt- pta ptb ptc pte pth pti ptp ptr pts ptt ra- raa rab rac rae rah rai rap rar ras rat rba rbb rbc rbe rbh rbi rbp rbr rbs rbt rca rcb rcc rce rch rci rcp rcr rcs rct re- rea reb rec ree reh rei rep rer res ret rh- rha rhb rhc rhe rhh rhi rhp rhr rhs rht ria rib ric rie rih rii rip rir ris rit rpa rpb rpc rpe rph rpi rpp rpr rps rpt rra rrb rrc rrh rri rrp rrr rrs rrt rsa rsb rsc rse rsh rsi rsp rsr rss rst rta rtb rtc rte rti rtp rtr rts rtt saa sab sac sae sah sai sap sar sas sat sba sbb sbc sbe sbh sbi sbp sbr sbs sbt sca scb scc sce sch sci scp scr scs sct se- sea seb sec see seh sei sep ser ses set sh- sha shb shc she shh shi shp shr shs sht sia sib sic sie sih sii sip sir sis sit spa spb spc spe sph spi spp spr sps spt sr- sra srb src sre srh sri srp srr srs srt ss- ssa ssb ssc sse ssh ssi ssp ssr sss sst sta stb stc ste sth sti stp str sts stt taa tab tac tae tah tai tap tar tas tat tba tbb tbc tbe tbh tbi tbp tbr tbs tbt tca tcb tcc tce tch tci tcp tcr tcs tct te- tea teb tec tee teh tei tep ter tes tet th- tha thb thc the thh thi thp thr ths tht tia tib tic tie tih tii tip tir tis tit tpa tpb tpc tpe tph tpi tpp tpr tps tpt