a-a a-c a-z aaa aac aag aak aao aas aau aaz ac- aca acc acg ack aco acs acu acz ag- aga agc agg agk ago ags agu agz aka akc akg akk ako aks aku aoa aoc aog aok aoo aos aou as- asa asc asg ask aso ass asu asz au- aua auc aug auk auo aus auz az- aza azg azo azs azu azz c-- caa cac cag cak cao cas cau caz cca ccc ccg cck cco ccs ccu ccz cga cgc cgg cgo cgs cgu cka ckc cko cks co- coa coc cog cok coo cos cou coz csa csc csg csk cso css csu csz cua cuc cug cuk cuo cus cuu cuz cz- czc czk czo gaa gac gag gak gao gas gau gaz gca gcc gcg gck gco gcs gcu gga ggc ggg ggo ggs ggu ggz gka gko gks goa goc gog gok goo gos gou goz gsa gsc gsg gsk gso gss gsu gu- gua guc gug guk guo gus guu guz gza gzo gzu k-z ka- kaa kac kag kak kao kas kau kaz kca kcc kcg kck kcs kcu kga kgc kgo kgs kgu kkc kkk kks kku koa koc kog kok koo kos kou koz ksa ksc ksg ksk kso kss ksu kuc kug kuk kus kuu kzo oaa oac oag oak oao oas oau oc- oca occ ocg ock oco ocs ocu ocz oga ogc ogg ogo ogs oka okc okg okk oko oks oku oo- ooa ooc oog ook ooo oos os- osa osc osg osk oso oss osu ou- oua ouc ouk ouo ous oza ozo ozs ozu ozz saa sac sag sak sao sas sau saz sca scc scg sck sco scs scu sga sgc sgg sgk sgo sgs sgu sk- ska skc skg skk sko sks sku soa soc sog sok soo sos sou soz ss- ssa ssc ssg ssk sso sss ssu ssz sua suc sug suk suo sus suu suz sza szu ua- uaa uac uag uak uao uas uau uaz uca ucc ucg uck uco ucs ucu uga ugc ugg ugk ugo ugs ugu uka ukc ukk uku ukz uoa uoc uog uok uoo uos usa usc usg usk uso uss usu usz uua uuc uug uus uuu uza uzo uzu z-g zaa zac zag zak zao zas zaz zco zcs zgg zgs zka zks zo- zoa zoc zog zok zoo zos zou zsa zsg zsu zsz zuc zug zuk zus zuz zzs zzz