a-a a-b aaa aab aae aah aak aan aao aap ab- aba abb abe abh abk abn abo abp aea aeb aee aeh aek aen aeo aep aha ahb ahe ahh ahk ahn aho ahp aka akb ake akh akk akn ako akp an- ana anb ane anh ank ann ano anp aoa aob aoe aoh aok aon aoo aop ap- apa apb ape aph apk apn apo app b-p baa bab bae bah bak ban bao bap bba bbb bbe bbh bbk bbn bbo bbp be- bea beb bee beh bek ben beo bep bha bhb bhe bhh bhk bho bhp bka bkb bke bkk bkn bko bkp bna bnb bne bnk bnn bno bnp boa bob boe boh bok bon boo bop bpa bpb bpe bph bpn bpo bpp eaa eab eae eah eak ean eao eap eba ebb ebe ebh ebk ebn ebo ebp eea eeb eee eek een eeo eep eha ehb ehe ehh ehn eho ehp eka ekb eke ekh eko ekp en- ena enb ene enh enk enn eno enp eo- eoa eob eoe eoh eok eon eoo eop ep- epa epb epe eph epn epo epp haa hab hae hah hak han hao hap hba hbb hbe hbh hbk hbn hbo hbp he- hea heb hee heh hek hen heo hep hha hhb hhe hhh hhk hhn hho hhp hka hkb hkh hkk hkn hko hkp hna hnb hne hnh hnk hnn hno hoa hob hoe hoh hok hon hoo hop hpa hpb hpe hph hpk hpn hpo hpp ka- kaa kab kae kah kak kan kao kap kba kbb kbe kbh kbk kbn kbo kbp ke- kea keb kee keh kek ken keo kep kha khe khh khk khn kho kkb kke kkh kkk kkn kkp kn- kna kne knk knn kno knp koa kob koe koh kok kon koo kop kpa kpe kph kpk kpn kpo kpp naa nab nae nah nak nan nao nap nba nbb nbe nbk nbn nbo nbp ne- nea neb nee neh nek nen neo nep nha nhb nhe nhh nhk nhn nhp nka nke nkk nkn nko nkp nna nnb nne nnh nnk nnn nno nnp no- noa nob noe noh nok non noo nop npa npb npe nph npn npo npp oaa oab oae oah oak oan oao oap ob- oba obb obe obh obk obn obo obp oea oeb oee oeh oen oeo oep oha ohe ohh ohn oho ohp oka okb oke okk oko okp on- ona onb one onh onk onn ono onp oo- ooa oob ooh ook oon ooo oop op- opa opb ope oph opk opn opo opp p-p paa pab pae pah pak pan pao pap pba pbb pbe pbk pbn pbo pbp pea peb pee peh pek pen peo pep pha phb phe phk phn pho php pka pkb pke pkn pko pkp pn- pna pnb pne pnh pnk pnn pno pnp poa pob poe poh pok pon poo pop ppa ppb ppe pph ppk ppn ppo ppp