a-a a-b a-c aaa aab aac aah aak aam aap aar aas ab- aba abb abc abh abk abm abp abr abs ac- aca acb acc ach ack acm acp acr acs aha ahb ahc ahh ahk ahm ahp ahr ahs aka akb akc akh akk akm akp akr aks ama amb amc amh amk amm amp amr ams ap- apa apb apc aph apk apm app apr aps ar- ara arb arc arh ark arm arp arr ars as- asa asb asc ash ask asm asp asr ass b-p baa bab bac bah bak bam bap bar bas bba bbb bbc bbh bbk bbm bbp bbr bbs bca bcb bcc bch bck bcm bcp bcr bcs bha bhb bhc bhh bhk bhm bhp bhr bhs bka bkb bkc bkk bkm bkp bkr bks bma bmb bmc bmh bmk bmm bmp bmr bms bpa bpb bpc bph bpm bpp bpr bps bra brb brh brk brm brp brr brs bsa bsb bsc bsh bsk bsm bsp bsr bss c-- caa cab cac cah cak cam cap car cas cba cbb cbc cbh cbk cbm cbp cbr cbs cca ccb ccc cch cck ccm ccp ccr ccs ch- cha chb chc chh chk chm chp chr chs cka ckb ckc ckh ckm cks cma cmb cmc cmh cmk cmm cmp cmr cms cpa cpb cpc cph cpk cpm cpp cpr cps cra crb crc crh crk crm crp crr crs csa csb csc csh csk csm csp csr css haa hab hac hah hak ham hap har has hba hbb hbc hbh hbk hbm hbp hbr hbs hca hcb hcc hch hck hcm hcp hcr hcs hha hhb hhc hhh hhk hhm hhp hhr hhs hka hkb hkh hkk hkm hkp hkr hks hma hmb hmc hmh hmk hmm hmp hmr hms hpa hpb hpc hph hpk hpm hpp hpr hps hr- hra hrb hrc hrh hrk hrm hrp hrr hrs hsa hsb hsc hsh hsk hsm hsp hsr hss ka- kaa kab kac kah kak kam kap kar kas kba kbb kbc kbh kbk kbm kbp kbr kbs kca kcb kcc kch kck kcm kcp kcr kcs kha khh khk khm khr khs kkb kkc kkh kkk kkm kkp kkr kks kma kmb kmc kmh kmk kmm kmp kms kpa kpc kph kpk kpm kpp kpr kps kra krc krk krp krr krs ksa ksb ksc ksh ksk ksm ksp ksr kss m-r maa mab mac mah mak mam map mar mas mba mbb mbc mbh mbk mbm mbp mbr mbs mc- mca mcb mcc mch mck mcm mcp mcr mcs mha mhc mhh mhk mhm mhp mhr mhs mka mkb mkc mkh mkk mkm mkp mkr mks mma mmb mmc mmh mmk mmm mmp mmr mms mpa mpb mpc mph mpk mpm mpp mpr mps mra mrb mrc mrh mrk mrm mrp mrr mrs msa msb msc msh msk msm msp msr mss p-p paa pab pac pah pak pam pap par pas pba pbb pbc pbk pbm pbp pbr pbs pca pcb pcc pch pck pcm pcp pcr pcs pha phb phc phk phm php phr phs pka pkb pkc pkm pkp pkr pks pma pmb pmc pmh pmk pmm pmp pmr pms ppa ppb ppc pph ppk ppm ppp ppr pps pra prb prc prh prk prm prp prr prs ps- psa psb psc psh psk psm psp psr pss ra- raa rab rac rah rak ram rap rar ras rba rbb rbc rbh rbk rbm rbp rbr rbs rca rcb rcc rch rcm rcp rcr rcs rh- rha rhb rhc rhh rhm rhp rhr rhs rkb rkc rkk rkm rkp rks rma rmb rmc rmh rmm rmp rmr rms rpa rpb rpc rph rpk rpm rpp rpr rps rra rrb rrc rrh rrk rrm rrp rrr rrs rsa rsb rsc rsh rsk rsm rsp rsr rss saa sab sac sah sak sam sap sar sas sba sbb sbc sbh sbk sbm sbp sbr sbs sca scb scc sch sck scm scp scr scs sh- sha shb shc shh shk shm shp shr shs sk- ska skb skc skh skk skm skp skr sks sma smb smc smh smk smm smp smr sms spa spb spc sph spk spm spp spr sps sr- sra srb src srh srk srm srp srr srs ss- ssa ssb ssc ssh ssk ssm ssp ssr sss