a-a a-b aaa aab aae aah aam aan aao aap ab- aba abb abe abh abm abn abo abp aea aeb aee aeh aem aen aeo aep aha ahb ahe ahh ahm ahn aho ahp ama amb ame amh amm amn amo amp an- ana anb ane anh anm ann ano anp aoa aob aoe aoh aom aon aoo aop ap- apa apb ape aph apm apn apo app b-p baa bab bae bah bam ban bao bap bba bbb bbe bbh bbm bbn bbo bbp be- bea beb bee beh bem ben beo bep bha bhb bhe bhh bhm bho bhp bma bmb bme bmh bmm bmn bmo bmp bna bnb bne bnn bno bnp boa bob boe boh bom bon boo bop bpa bpb bpe bph bpm bpn bpo bpp eaa eab eae eah eam ean eao eap eba ebb ebe ebh ebm ebn ebo ebp eea eeb eee eem een eeo eep eha ehb ehe ehh ehm ehn eho ehp em- ema emb eme emh emm emn emo emp en- ena enb ene enh enm enn eno enp eo- eoa eob eoe eoh eom eon eoo eop ep- epa epb epe eph epm epn epo epp haa hab hae hah ham han hao hap hba hbb hbe hbh hbm hbn hbo hbp he- hea heb hee heh hem hen heo hep hha hhb hhe hhh hhm hhn hho hhp hma hmb hme hmh hmm hmo hmp hna hnb hne hnh hnn hno hoa hob hoe hoh hom hon hoo hop hpa hpb hpe hph hpm hpn hpo hpp m-o maa mab mae mah mam man mao map mba mbb mbe mbh mbm mbo mbp mea meb mee meh mem men meo mep mha mhh mhm mhn mho mhp mma mmb mme mmh mmm mmn mmo mmp mna mnb mne mnm mnn mno mnp moa mob moe moh mom mon moo mop mpa mpb mpe mph mpm mpn mpo mpp naa nab nae nah nam nan nao nap nba nbb nbe nbm nbn nbo nbp ne- nea neb nee neh nem nen neo nep nha nhb nhe nhh nhm nhn nhp nma nmb nme nmh nmm nmn nmo nmp nna nnb nne nnh nnm nnn nno nnp no- noa nob noe noh nom non noo nop npa npb npe nph npm npn npo npp oaa oab oae oah oam oan oao oap ob- oba obb obe obh obm obn obo obp oea oeb oee oeh oem oen oeo oep oha ohe ohh ohm ohn oho ohp om- oma omb ome omh omm omn omo omp on- ona onb one onh onn ono onp oo- ooa oob ooh oom oon ooo oop op- opa opb ope oph opm opn opo opp p-p paa pab pae pah pam pan pao pap pba pbb pbe pbm pbn pbo pbp pea peb pee peh pem pen peo pep pha phb phe phm phn pho php pma pmb pme pmh pmm pmn pmo pmp pn- pna pnb pne pnh pnm pnn pno pnp poa pob poe poh pom pon poo pop ppa ppb ppe pph ppm ppn ppo ppp