-er a-a a-c aaa aac aae aah aak aan aap aar ac- aca acc ace ach ack acn acp acr aea aec aee aeh aek aen aep aer aha ahc ahe ahh ahk ahn ahp ahr aka akc ake akh akk akn akp akr an- ana anc ane anh ank ann anp anr ap- apa apc ape aph apk apn app apr ar- ara arc are arh ark arn arp arr c-- caa cac cae cah cak can cap car cca ccc cce cch cck ccn ccp ccr ce- cea cec cee ceh cek cen cep cer ch- cha chc che chh chk chn chp chr cka ckc ckh cn- cna cnc cne cnh cnn cnp cnr cpa cpc cpe cph cpk cpn cpp cpr cra crc cre crh crk crn crp crr eaa eac eae eah eak ean eap ear ec- eca ecc ece ech eck ecn ecr eea eec eee eek een eep eer eha ehc ehe ehh ehn ehp ehr eka ekc eke ekh ekp ekr en- ena enc ene enh enk enn enp enr ep- epa epc epe eph epn epp epr era erc ere erh erk ern erp err haa hac hae hah hak han hap har hca hcc hce hch hck hcn hcp hcr he- hea hec hee heh hek hen hep her hha hhc hhe hhh hhk hhn hhp hhr hka hkh hkk hkn hkp hkr hna hnc hne hnh hnk hnn hpa hpc hpe hph hpk hpn hpp hpr hr- hra hrc hre hrh hrk hrn hrp hrr ka- kaa kac kae kah kak kan kap kar kca kcc kce kch kck kcn kcp kcr ke- kea kec kee keh kek ken kep ker kha khe khh khk khn khr kkc kke kkh kkk kkn kkp kkr kn- kna knc kne knk knn knp knr kpa kpc kpe kph kpk kpn kpp kpr kra krc krk krn krp krr naa nac nae nah nak nan nap nar nca ncc nce nch nck ncn ncp ncr ne- nea nec nee neh nek nen nep ner nha nhc nhe nhh nhk nhn nhp nhr nka nkc nke nkk nkn nkp nkr nna nnc nne nnh nnk nnn nnp npa npc npe nph npn npp npr nra nrc nre nrk nrn nrp nrr p-p paa pac pae pah pak pan pap par pca pcc pce pch pck pcn pcp pcr pea pec pee peh pek pen pep per pha phc phe phk phn php phr pka pkc pke pkn pkp pkr pn- pna pnc pne pnh pnk pnn pnp pnr ppa ppc ppe pph ppk ppn ppp ppr pra prc pre prh prk prn prp prr ra- raa rac rae rah rak ran rap rar rca rcc rce rch rcn rcp rcr re- rea rec ree reh rek ren rep rer rh- rha rhc rhe rhh rhn rhp rhr rkc rke rkk rkp rna rnc rnh rnn rnp rnr rpa rpc rpe rph rpk rpn rpp rpr rra rrc rrh rrk rrn rrp rrr