-er a-a a-b a-c aaa aab aac aae aah aam aap aar aas ab- aba abb abc abe abh abm abp abr abs ac- aca acb acc ace ach acm acp acr acs aea aeb aec aee aeh aem aep aer aes aha ahb ahc ahe ahh ahm ahp ahr ahs ama amb amc ame amh amm amp amr ams ap- apa apb apc ape aph apm app apr aps ar- ara arb arc are arh arm arp arr ars as- asa asb asc ase ash asm asp asr ass b-p baa bab bac bae bah bam bap bar bas bba bbb bbc bbe bbh bbm bbp bbr bbs bca bcb bcc bce bch bcm bcp bcr bcs be- bea beb bec bee beh bem bep ber bes bha bhb bhc bhe bhh bhm bhp bhr bhs bma bmb bmc bme bmh bmm bmp bmr bms bpa bpb bpc bpe bph bpm bpp bpr bps bra brb bre brh brm brp brr brs bsa bsb bsc bse bsh bsm bsp bsr bss c-- caa cab cac cae cah cam cap car cas cba cbb cbc cbe cbh cbm cbp cbr cbs cca ccb ccc cce cch ccm ccp ccr ccs ce- cea ceb cec cee ceh cem cep cer ces ch- cha chb chc che chh chm chp chr chs cma cmb cmc cme cmh cmm cmp cmr cms cpa cpb cpc cpe cph cpm cpp cpr cps cra crb crc cre crh crm crp crr crs csa csb csc cse csh csm csp csr css eaa eab eac eae eah eam eap ear eas eba ebb ebc ebe ebh ebm ebp ebr ebs ec- eca ecb ecc ece ech ecm ecr ecs eea eeb eec eee eem eep eer ees eha ehb ehc ehe ehh ehm ehp ehr ehs em- ema emb emc eme emh emm emp emr ems ep- epa epb epc epe eph epm epp epr eps era erb erc ere erh erm erp err ers es- esa esb esc ese esh esm esp esr ess haa hab hac hae hah ham hap har has hba hbb hbc hbe hbh hbm hbp hbr hbs hca hcb hcc hce hch hcm hcp hcr hcs he- hea heb hec hee heh hem hep her hes hha hhb hhc hhe hhh hhm hhp hhr hhs hma hmb hmc hme hmh hmm hmp hmr hms hpa hpb hpc hpe hph hpm hpp hpr hps hr- hra hrb hrc hre hrh hrm hrp hrr hrs hsa hsb hsc hse hsh hsm hsp hsr hss m-r maa mab mac mae mah mam map mar mas mba mbb mbc mbe mbh mbm mbp mbr mbs mc- mca mcb mcc mce mch mcm mcp mcr mcs mea meb mec mee meh mem mep mer mes mha mhc mhh mhm mhp mhr mhs mma mmb mmc mme mmh mmm mmp mmr mms mpa mpb mpc mpe mph mpm mpp mpr mps mra mrb mrc mre mrh mrm mrp mrr mrs msa msb msc mse msh msm msp msr mss p-p paa pab pac pae pah pam pap par pas pba pbb pbc pbe pbm pbp pbr pbs pca pcb pcc pce pch pcm pcp pcr pcs pea peb pec pee peh pem pep per pes pha phb phc phe phm php phr phs pma pmb pmc pme pmh pmm pmp pmr pms ppa ppb ppc ppe pph ppm ppp ppr pps pra prb prc pre prh prm prp prr prs ps- psa psb psc pse psh psm psp psr pss ra- raa rab rac rae rah ram rap rar ras rba rbb rbc rbe rbh rbm rbp rbr rbs rca rcb rcc rce rch rcm rcp rcr rcs re- rea reb rec ree reh rem rep rer res rh- rha rhb rhc rhe rhh rhm rhp rhr rhs rma rmb rmc rme rmh rmm rmp rmr rms rpa rpb rpc rpe rph rpm rpp rpr rps rra rrb rrc rrh rrm rrp rrr rrs rsa rsb rsc rse rsh rsm rsp rsr rss saa sab sac sae sah sam sap sar sas sba sbb sbc sbe sbh sbm sbp sbr sbs sca scb scc sce sch scm scp scr scs se- sea seb sec see seh sem sep ser ses sh- sha shb shc she shh shm shp shr shs sma smb smc sme smh smm smp smr sms spa spb spc spe sph spm spp spr sps sr- sra srb src sre srh srm srp srr srs ss- ssa ssb ssc sse ssh ssm ssp ssr sss