-er a-a a-c aaa aac aae aah aan aap aar ac- aca acc ace ach acn acp acr aea aec aee aeh aen aep aer aha ahc ahe ahh ahn ahp ahr an- ana anc ane anh ann anp anr ap- apa apc ape aph apn app apr ar- ara arc are arh arn arp arr c-- caa cac cae cah can cap car cca ccc cce cch ccn ccp ccr ce- cea cec cee ceh cen cep cer ch- cha chc che chh chn chp chr cn- cna cnc cne cnh cnn cnp cnr cpa cpc cpe cph cpn cpp cpr cra crc cre crh crn crp crr eaa eac eae eah ean eap ear ec- eca ecc ece ech ecn ecr eea eec eee een eep eer eha ehc ehe ehh ehn ehp ehr en- ena enc ene enh enn enp enr ep- epa epc epe eph epn epp epr era erc ere erh ern erp err haa hac hae hah han hap har hca hcc hce hch hcn hcp hcr he- hea hec hee heh hen hep her hha hhc hhe hhh hhn hhp hhr hna hnc hne hnh hnn hpa hpc hpe hph hpn hpp hpr hr- hra hrc hre hrh hrn hrp hrr naa nac nae nah nan nap nar nca ncc nce nch ncn ncp ncr ne- nea nec nee neh nen nep ner nha nhc nhe nhh nhn nhp nhr nna nnc nne nnh nnn nnp npa npc npe nph npn npp npr nra nrc nre nrn nrp nrr p-p paa pac pae pah pan pap par pca pcc pce pch pcn pcp pcr pea pec pee peh pen pep per pha phc phe phn php phr pn- pna pnc pne pnh pnn pnp pnr ppa ppc ppe pph ppn ppp ppr pra prc pre prh prn prp prr ra- raa rac rae rah ran rap rar rca rcc rce rch rcn rcp rcr re- rea rec ree reh ren rep rer rh- rha rhc rhe rhh rhn rhp rhr rna rnc rnh rnn rnp rnr rpa rpc rpe rph rpn rpp rpr rra rrc rrh rrn rrp rrr