-er a-a a-c aaa aac aad aae aah aar aas ac- aca acc acd ace ach acr acs ad- ada adc add ade adh adr ads aea aec aed aee aeh aer aes aha ahc ahd ahe ahh ahr ahs ar- ara arc ard are arh arr ars as- asa asc asd ase ash asr ass c-- caa cac cad cae cah car cas cca ccc ccd cce cch ccr ccs cda cdc cdd cde cdh cdr cds ce- cea cec ced cee ceh cer ces ch- cha chc chd che chh chr chs cra crc crd cre crh crr crs csa csc csd cse csh csr css daa dac dad dae dah dar das dca dcc dcd dce dcr dcs dda ddc ddd dde ddh ddr dds de- dea dec ded dee deh der des dh- dha dhc dhd dhe dhh dhr dhs dra drc drd dre drr drs dsa dsc dsd dse dsh dsr dss eaa eac ead eae eah ear eas ec- eca ecc ecd ece ech ecr ecs ed- eda edc edd ede edh edr eds eea eec eed eee eer ees eha ehc ehd ehe ehh ehr ehs era erc erd ere erh err ers es- esa esc esd ese esh esr ess haa hac had hae hah har has hca hcc hcd hce hch hcr hcs hda hdc hdd hde hdh hdr hds he- hea hec hed hee heh her hes hha hhc hhd hhe hhh hhr hhs hr- hra hrc hrd hre hrh hrr hrs hsa hsc hsd hse hsh hsr hss ra- raa rac rad rae rah rar ras rca rcc rcd rce rch rcr rcs rda rdc rdd rde rdh rdr rds re- rea rec red ree reh rer res rh- rha rhc rhd rhe rhh rhr rhs rra rrc rrd rrh rrr rrs rsa rsc rsd rse rsh rsr rss saa sac sad sae sah sar sas sca scc scd sce sch scr scs sda sdc sdd sde sdh sdr sds se- sea sec sed see seh ser ses sh- sha shc shd she shh shr shs sr- sra src srd sre srh srr srs ss- ssa ssc ssd sse ssh ssr sss