-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aam aap aar aas aat ab- aba abb abc abe abi abm abp abr abs abt ac- aca acb acc ace aci acm acp acr acs act aea aeb aec aee aei aem aep aer aes aet ai- aia aib aic aie aii aim aip air ais ait ama amb amc ame ami amm amp amr ams amt ap- apa apb apc ape api apm app apr aps apt ar- ara arb arc are ari arm arp arr ars art as- asa asb asc ase asi asm asp asr ass ast at- ata atb atc ate ati atm atp atr ats att b-p baa bab bac bae bai bam bap bar bas bat bba bbb bbc bbe bbi bbm bbp bbr bbs bbt bca bcb bcc bce bci bcm bcp bcr bcs bct be- bea beb bec bee bei bem bep ber bes bet bi- bia bib bic bie bii bim bip bir bis bit bma bmb bmc bme bmi bmm bmp bmr bms bmt bpa bpb bpc bpe bpi bpm bpp bpr bps bpt bra brb bre bri brm brp brr brs brt bsa bsb bsc bse bsi bsm bsp bsr bss bst bta btb btc bte bti btm btp btr bts btt c-- caa cab cac cae cai cam cap car cas cat cba cbb cbc cbe cbi cbm cbp cbr cbs cbt cca ccb ccc cce cci ccm ccp ccr ccs cct ce- cea ceb cec cee cei cem cep cer ces cet ci- cia cib cic cie cii cim cip cir cis cit cma cmb cmc cme cmi cmm cmp cmr cms cmt cpa cpb cpc cpe cpi cpm cpp cpr cps cpt cra crb crc cre cri crm crp crr crs crt csa csb csc cse csi csm csp csr css cst cta ctb ctc cte cti ctm ctp ctr cts ctt eaa eab eac eae eai eam eap ear eas eat eba ebb ebc ebe ebi ebm ebp ebr ebs ebt ec- eca ecb ecc ece eci ecm ecr ecs ect eea eeb eec eee eem eep eer ees eet eia eib eic eie eii eim eip eir eis eit em- ema emb emc eme emi emm emp emr ems emt ep- epa epb epc epe epi epm epp epr eps ept era erb erc ere eri erm erp err ers ert es- esa esb esc ese esi esm esp esr ess est eta etb etc ete eti etm etp etr ets ett ia- iaa iab iac iae iai iam iap iar ias iat iba ibb ibc ibe ibi ibm ibp ibr ibs ibt ica icb icc ice ici icm icp icr ics ict ie- iea iec iee iei iem iep ier ies iet iia iib iic iie iii iim iip iir iis iit im- ima imb imc ime imi imm imp ims imt ipa ipb ipc ipe ipi ipm ipp ipr ips ipt ir- ira irb irc ire iri irm irp irr irs irt is- isa isb isc ise isi ism isp isr iss ist ita itb itc ite iti itm itp its itt m-r maa mab mac mae mai mam map mar mas mat mba mbb mbc mbe mbi mbm mbp mbr mbs mbt mc- mca mcb mcc mce mci mcm mcp mcr mcs mct mea meb mec mee mei mem mep mer mes met mi- mia mib mic mie mii mim mip mir mis mit mma mmb mmc mme mmi mmm mmp mmr mms mmt mpa mpb mpc mpe mpi mpm mpp mpr mps mpt mra mrb mrc mre mri mrm mrp mrr mrs mrt msa msb msc mse msi msm msp msr mss mst mta mtb mtc mte mti mtm mtp mtr mts mtt p-p paa pab pac pae pai pam pap par pas pat pba pbb pbc pbe pbi pbm pbp pbr pbs pbt pca pcb pcc pce pci pcm pcp pcr pcs pct pea peb pec pee pei pem pep per pes pet pia pib pic pie pii pim pip pir pis pit pma pmb pmc pme pmi pmm pmp pmr pms pmt ppa ppb ppc ppe ppi ppm ppp ppr pps ppt pra prb prc pre pri prm prp prr prs prt ps- psa psb psc pse psi psm psp psr pss pst pt- pta ptb ptc pte pti ptm ptp ptr pts ptt ra- raa rab rac rae rai ram rap rar ras rat rba rbb rbc rbe rbi rbm rbp rbr rbs rbt rca rcb rcc rce rci rcm rcp rcr rcs rct re- rea reb rec ree rei rem rep rer res ret ria rib ric rie rii rim rip rir ris rit rma rmb rmc rme rmi rmm rmp rmr rms rmt rpa rpb rpc rpe rpi rpm rpp rpr rps rpt rra rrb rrc rri rrm rrp rrr rrs rrt rsa rsb rsc rse rsi rsm rsp rsr rss rst rta rtb rtc rte rti rtm rtp rtr rts rtt saa sab sac sae sai sam sap sar sas sat sba sbb sbc sbe sbi sbm sbp sbr sbs sbt sca scb scc sce sci scm scp scr scs sct se- sea seb sec see sei sem sep ser ses set sia sib sic sie sii sim sip sir sis sit sma smb smc sme smi smm smp smr sms smt spa spb spc spe spi spm spp spr sps spt sr- sra srb src sre sri srm srp srr srs srt ss- ssa ssb ssc sse ssi ssm ssp ssr sss sst sta stb stc ste sti stm stp str sts stt taa tab tac tae tai tam tap tar tas tat tba tbb tbc tbe tbi tbm tbp tbr tbs tbt tca tcb tcc tce tci tcm tcp tcr tcs tct te- tea teb tec tee tei tem tep ter tes tet tia tib tic tie tii tim tip tir tis tit tma tmb tmc tme tmi tmm tmp tmr tms tmt tpa tpb tpc tpe tpi tpm