a-a a-c a-z aaa aac aag aah aao aap aas aaz ac- aca acc acg ach aco acp acs acz ag- aga agc agg agh ago agp ags agz aha ahc ahg ahh aho ahp ahs ahz aoa aoc aog aoh aoo aop aos ap- apa apc apg aph apo app aps as- asa asc asg ash aso asp ass asz az- aza azg azo azp azs azz c-- caa cac cag cah cao cap cas caz cca ccc ccg cch cco ccp ccs ccz cga cgc cgg cgh cgo cgp cgs ch- cha chc chg chh cho chp chs chz co- coa coc cog coh coo cop cos coz cpa cpc cpg cph cpo cpp cps cpz csa csc csg csh cso csp css csz cz- czc czo g-p gaa gac gag gah gao gap gas gaz gca gcc gcg gch gco gcp gcs gga ggc ggg ggh ggo ggp ggs ggz gha ghc ghg ghh gho ghp ghs ghz goa goc gog goh goo gop gos goz gpa gpc gpg gph gpo gpp gps gpz gsa gsc gsg gso gsp gss gza gzo gzp haa hac hag hah hao hap has haz hca hcc hcg hch hco hcp hcs hga hgc hgg hgh hgo hgp hgs hha hhc hhg hhh hho hhp hhs hhz hoa hoc hog hoh hoo hop hos hpa hpc hpg hph hpo hpp hps hsa hsc hsg hsh hsp hss hsz hzo hzp hzs oaa oac oag oah oao oap oas oc- oca occ ocg och oco ocp ocs ocz oga ogc ogg ogh ogo ogp ogs oha ohc ohg ohh oho ohp ohs oo- ooa ooc oog ooh ooo oop oos op- opa opc opg oph opo opp ops os- osa osc osg osh oso osp oss oza ozo ozs ozz p-p paa pac pag pah pao pap pas paz pca pcc pcg pch pco pcp pcs pga pgc pgg pgh pgo pgp pgs pha phc phg pho php phs poa poc pog poh poo pop pos poz ppa ppc ppg pph ppo ppp pps ppz ps- psa psc psg psh pso psp pss pzc pzp saa sac sag sah sao sap sas saz sca scc scg sch sco scp scs sga sgc sgg sgh sgo sgp sgs sh- sha shc shg shh sho shp shs soa soc sog soh soo sop sos soz spa spc spg sph spo spp sps spz ss- ssa ssc ssg ssh sso ssp sss ssz sza szp z-g zaa zac zag zah zao zap zas zaz zco zcs zgg zgs zha zhc zho zhs zo- zoa zoc zog zoo zos zpc zpg zpo zpp zsa zsg zsh zsz zzs zzz