a-a a-c aaa aac aad aae aam aap aas ac- aca acc acd ace acm acp acs ad- ada adc add ade adm adp ads aea aec aed aee aem aep aes ama amc amd ame amm amp ams ap- apa apc apd ape apm app aps as- asa asc asd ase asm asp ass c-- caa cac cad cae cam cap cas cca ccc ccd cce ccm ccp ccs cda cdc cdd cde cdm cdp cds ce- cea cec ced cee cem cep ces cma cmc cmd cme cmm cmp cms cpa cpc cpd cpe cpm cpp cps csa csc csd cse csm csp css daa dac dad dae dam dap das dca dcc dcd dce dcm dcp dcs dda ddc ddd dde ddm ddp dds de- dea dec ded dee dem dep des dma dmc dmd dme dmm dmp dms dpa dpc dpd dpe dpm dpp dps dsa dsc dsd dse dsm dsp dss eaa eac ead eae eam eap eas ec- eca ecc ecd ece ecm ecs ed- eda edc edd ede edm edp eds eea eec eed eee eem eep ees em- ema emc emd eme emm emp ems ep- epa epc epd epe epm epp eps es- esa esc esd ese esm esp ess maa mac mad mae mam map mas mc- mca mcc mcd mce mcm mcp mcs mda mdc mdd mde mdm mdp mds mea mec med mee mem mep mes mma mmc mmd mme mmm mmp mms mpa mpc mpd mpe mpm mpp mps msa msc msd mse msm msp mss p-p paa pac pad pae pam pap pas pca pcc pcd pce pcm pcp pcs pda pdc pdd pde pdm pdp pds pea pec ped pee pem pep pes pma pmc pmd pme pmm pmp pms ppa ppc ppd ppe ppm ppp pps ps- psa psc psd pse psm psp pss saa sac sad sae sam sap sas sca scc scd sce scm scp scs sda sdc sdd sde sdm sdp sds se- sea sec sed see sem sep ses sma smc smd sme smm smp sms spa spc spd spe spm spp sps ss- ssa ssc ssd sse ssm ssp sss