a-a aaa aad aak aan aao aap aar ad- ada add adk adn ado adp adr aka akd akk akn ako akp akr an- ana and ank ann ano anp anr aoa aod aok aon aoo aop aor ap- apa apd apk apn apo app apr ar- ara ard ark arn aro arp arr daa dad dak dan dao dap dar dda ddd ddk ddn ddo ddp ddr dka dkk dko dkp dkr dna dnd dnk dnn dno dnp dnr doa dod dok don doo dop dor dpa dpd dpk dpn dpo dpp dpr dra drd drk drn dro drp drr ka- kaa kad kak kan kao kap kar kda kdk kdo kdp kdr kkk kkn kkp kkr kn- kna knd knk knn kno knp knr koa kod kok kon koo kop kor kpa kpd kpk kpn kpo kpp kpr kra krd krk krn kro krp krr naa nad nak nan nao nap nar nda ndd ndk ndn ndo ndp ndr nka nkk nkn nko nkp nkr nna nnk nnn nno nnp no- noa nod nok non noo nop nor npa npd npn npo npp npr nra nrd nrk nrn nro nrp nrr oaa oad oak oan oao oap oar oda odd odn odo odp odr oka okd okk oko okp okr on- ona ond onk onn ono onp onr oo- ooa ood ook oon ooo oop oor op- opa opd opk opn opo opp opr or- ora ord ork orn oro orp orr p-p paa pad pak pan pao pap par pda pdd pdk pdn pdo pdp pdr pka pkd pkn pko pkp pkr pn- pna pnd pnk pnn pno pnp pnr poa pod pok pon poo pop por ppa ppd ppk ppn ppo ppp ppr pra prd prk prn pro prp prr ra- raa rad rak ran rao rap rar rda rdd rdn rdo rdp rdr rkk rko rkp rna rnd rnn rno rnp rnr roa rod rok ron roo rop ror rpa rpd rpk rpn rpo rpp rpr rra rrd rrk rrn rrp rrr