a-a a-c aaa aac aae aah aao aap aas ac- aca acc ace ach aco acp acs aea aec aee aeh aeo aep aes aha ahc ahe ahh aho ahp ahs aoa aoc aoe aoh aoo aop aos ap- apa apc ape aph apo app aps as- asa asc ase ash aso asp ass c-- caa cac cae cah cao cap cas cca ccc cce cch cco ccp ccs ce- cea cec cee ceh ceo cep ces ch- cha chc che chh cho chp chs co- coa coc coe coh coo cop cos cpa cpc cpe cph cpo cpp cps csa csc cse csh cso csp css eaa eac eae eah eao eap eas ec- eca ecc ece ech eco ecs eea eec eee eeo eep ees eha ehc ehe ehh eho ehp ehs eo- eoa eoc eoe eoh eoo eop eos ep- epa epc epe eph epo epp eps es- esa esc ese esh eso esp ess haa hac hae hah hao hap has hca hcc hce hch hco hcp hcs he- hea hec hee heh heo hep hes hha hhc hhe hhh hho hhp hhs hoa hoc hoe hoh hoo hop hos hpa hpc hpe hph hpo hpp hps hsa hsc hse hsh hsp hss oaa oac oae oah oao oap oas oc- oca occ och oco ocp ocs oea oec oee oeh oeo oep oes oha ohc ohe ohh oho ohp ohs oo- ooa ooc ooh ooo oop oos op- opa opc ope oph opo opp ops os- osa osc ose osh oso osp oss p-p paa pac pae pah pao pap pas pca pcc pce pch pco pcp pcs pea pec pee peh peo pep pes pha phc phe pho php phs poa poc poe poh poo pop pos ppa ppc ppe pph ppo ppp pps ps- psa psc pse psh pso psp pss saa sac sae sah sao sap sas sca scc sce sch sco scp scs se- sea sec see seh seo sep ses sh- sha shc she shh sho shp shs soa soc soe soh soo sop sos spa spc spe sph spo spp sps ss- ssa ssc sse ssh sso ssp sss