a-a a-c aaa aac aak aam aan aao aap aas ac- aca acc ack acm acn aco acp acs aka akc akk akm akn ako akp aks ama amc amk amm amn amo amp ams an- ana anc ank anm ann ano anp ans aoa aoc aok aom aon aoo aop aos ap- apa apc apk apm apn apo app aps as- asa asc ask asm asn aso asp ass c-- caa cac cak cam can cao cap cas cca ccc cck ccm ccn cco ccp ccs cka ckc ckm cko cks cma cmc cmk cmm cmn cmo cmp cms cn- cna cnc cnm cnn cno cnp cns co- coa coc cok com con coo cop cos cpa cpc cpk cpm cpn cpo cpp cps csa csc csk csm csn cso csp css ka- kaa kac kak kam kan kao kap kas kca kcc kck kcm kcn kcp kcs kkc kkk kkm kkn kkp kks kma kmc kmk kmm kmo kmp kms kn- kna knc knk knm knn kno knp koa koc kok kom kon koo kop kos kpa kpc kpk kpm kpn kpo kpp kps ksa ksc ksk ksm ksn kso ksp kss m-o maa mac mak mam man mao map mas mc- mca mcc mck mcm mcn mco mcp mcs mka mkc mkk mkm mkn mko mkp mks mma mmc mmk mmm mmn mmo mmp mms mna mnc mnk mnm mnn mno mnp mns moa moc mok mom mon moo mop mos mpa mpc mpk mpm mpn mpo mpp mps msa msc msk msm msn mso msp mss naa nac nak nam nan nao nap nas nca ncc nck ncm ncn nco ncp ncs nka nkc nkk nkm nkn nko nkp nks nma nmc nmk nmm nmn nmo nmp nms nna nnc nnk nnm nnn nno nnp nns no- noa noc nok nom non noo nop nos npa npc npm npn npo npp nps nsa nsc nsk nsm nsn nso nsp nss oaa oac oak oam oan oao oap oas oc- oca occ ock ocm ocn oco ocp ocs oka okc okk oko okp oks om- oma omc omm omn omo omp oms on- ona onc onk onn ono onp ons oo- ooa ooc ook oom oon ooo oop oos op- opa opc opk opm opn opo opp ops os- osa osc osk osm osn oso osp oss p-p paa pac pak pam pan pao pap pas pca pcc pck pcm pcn pco pcp pcs pka pkc pkm pkn pko pkp pks pma pmc pmk pmm pmn pmo pmp pms pn- pna pnc pnk pnm pnn pno pnp pns poa poc pok pom pon poo pop pos ppa ppc ppk ppm ppn ppo ppp pps ps- psa psc psk psm psn pso psp pss saa sac sak sam san sao sap sas sca scc sck scm scn sco scp scs sk- ska skc skk skm sko skp sks sma smc smk smm smn smo smp sms sna snc snk snm snn sno snp sns soa soc sok som son soo sop sos spa spc spk spm spn spo spp sps ss- ssa ssc ssk ssm ssn sso ssp sss