-er a-a a-c aaa aac aad aae aam aap aar aas ac- aca acc acd ace acm acp acr acs ad- ada adc add ade adm adp adr ads aea aec aed aee aem aep aer aes ama amc amd ame amm amp amr ams ap- apa apc apd ape apm app apr aps ar- ara arc ard are arm arp arr ars as- asa asc asd ase asm asp asr ass c-- caa cac cad cae cam cap car cas cca ccc ccd cce ccm ccp ccr ccs cda cdc cdd cde cdm cdp cdr cds ce- cea cec ced cee cem cep cer ces cma cmc cmd cme cmm cmp cmr cms cpa cpc cpd cpe cpm cpp cpr cps cra crc crd cre crm crp crr crs csa csc csd cse csm csp csr css daa dac dad dae dam dap dar das dca dcc dcd dce dcm dcp dcr dcs dda ddc ddd dde ddm ddp ddr dds de- dea dec ded dee dem dep der des dma dmc dmd dme dmm dmp dmr dms dpa dpc dpd dpe dpm dpp dpr dps dra drc drd dre drm drp drr drs dsa dsc dsd dse dsm dsp dsr dss eaa eac ead eae eam eap ear eas ec- eca ecc ecd ece ecm ecr ecs ed- eda edc edd ede edm edp edr eds eea eec eed eee eem eep eer ees em- ema emc emd eme emm emp emr ems ep- epa epc epd epe epm epp epr eps era erc erd ere erm erp err ers es- esa esc esd ese esm esp esr ess m-r maa mac mad mae mam map mar mas mc- mca mcc mcd mce mcm mcp mcr mcs mda mdc mdd mde mdm mdp mdr mds mea mec med mee mem mep mer mes mma mmc mmd mme mmm mmp mmr mms mpa mpc mpd mpe mpm mpp mpr mps mra mrc mrd mre mrm mrp mrr mrs msa msc msd mse msm msp msr mss p-p paa pac pad pae pam pap par pas pca pcc pcd pce pcm pcp pcr pcs pda pdc pdd pde pdm pdp pdr pds pea pec ped pee pem pep per pes pma pmc pmd pme pmm pmp pmr pms ppa ppc ppd ppe ppm ppp ppr pps pra prc prd pre prm prp prr prs ps- psa psc psd pse psm psp psr pss ra- raa rac rad rae ram rap rar ras rca rcc rcd rce rcm rcp rcr rcs rda rdc rdd rde rdm rdp rdr rds re- rea rec red ree rem rep rer res rma rmc rmd rme rmm rmp rmr rms rpa rpc rpd rpe rpm rpp rpr rps rra rrc rrd rrm rrp rrr rrs rsa rsc rsd rse rsm rsp rsr rss saa sac sad sae sam sap sar sas sca scc scd sce scm scp scr scs sda sdc sdd sde sdm sdp sdr sds se- sea sec sed see sem sep ser ses sma smc smd sme smm smp smr sms spa spc spd spe spm spp spr sps sr- sra src srd sre srm srp srr srs ss- ssa ssc ssd sse ssm ssp ssr sss