-al -ol a-a a-b a-c aaa aab aac aah aak aal aan aao aap aar ab- aba abb abc abh abk abl abn abo abp abr ac- aca acb acc ach ack acl acn aco acp acr aha ahb ahc ahh ahk ahl ahn aho ahp ahr aka akb akc akh akk akl akn ako akp akr al- ala alb alc alh alk all aln alo alp alr an- ana anb anc anh ank anl ann ano anp anr aoa aob aoc aoh aok aol aon aoo aop aor ap- apa apb apc aph apk apl apn apo app apr ar- ara arb arc arh ark arl arn aro arp arr b-p baa bab bac bah bak bal ban bao bap bar bba bbb bbc bbh bbk bbl bbn bbo bbp bbr bca bcb bcc bch bck bcl bcn bco bcp bcr bha bhb bhc bhh bhk bhl bho bhp bhr bka bkb bkc bkk bkl bkn bko bkp bkr bla blb blc blh blk bll bln blo blp blr bna bnb bnc bnk bnl bnn bno bnp bnr boa bob boc boh bok bol bon boo bop bor bpa bpb bpc bph bpl bpn bpo bpp bpr bra brb brh brk brl brn bro brp brr c-- caa cab cac cah cak cal can cao cap car cba cbb cbc cbh cbk cbl cbn cbo cbp cbr cca ccb ccc cch cck ccl ccn cco ccp ccr ch- cha chb chc chh chk chl chn cho chp chr cka ckb ckc ckh cko cl- cla clb clc clh clk cll cln clo clp clr cn- cna cnb cnc cnh cnl cnn cno cnp cnr co- coa cob coc coh cok col con coo cop cor cpa cpb cpc cph cpk cpl cpn cpo cpp cpr cra crb crc crh crk crl crn cro crp crr haa hab hac hah hak hal han hao hap har hba hbb hbc hbh hbk hbl hbn hbo hbp hbr hca hcb hcc hch hck hcl hcn hco hcp hcr hha hhb hhc hhh hhk hhl hhn hho hhp hhr hka hkb hkh hkk hkl hkn hko hkp hkr hla hlb hlc hlh hll hln hlo hlp hlr hna hnb hnc hnh hnk hnl hnn hno hoa hob hoc hoh hok hol hon hoo hop hor hpa hpb hpc hph hpk hpl hpn hpo hpp hpr hr- hra hrb hrc hrh hrk hrl hrn hro hrp hrr ka- kaa kab kac kah kak kal kan kao kap kar kba kbb kbc kbh kbk kbl kbn kbo kbp kbr kca kcb kcc kch kck kcl kcn kcp kcr kha khh khk khn kho khr kkb kkc kkh kkk kkl kkn kkp kkr kl- kla klb klc klh klo klr kn- kna knc knk knl knn kno knp knr koa kob koc koh kok kol kon koo kop kor kpa kpc kph kpk kpl kpn kpo kpp kpr kra krc krk krl krn kro krp krr l-p la- laa lab lac lah lak lal lan lao lap lar lba lbb lbc lbh lbk lbl lbo lbp lbr lca lcb lcc lch lck lcl lcn lco lcp lcr lha lhb lhc lhh lhk lho lhp lhr lka lkb lkh lkl lkp lkr lla llb llc llk lll lln llo llp llr lna lnb lnc lnh lnk lnl lnn lno lnp lnr loa lob loc loh lok lol lon loo lop lor lpa lpb lpc lph lpk lpl lpn lpo lpp lpr lra lrb lrc lrh lrk lrn lro lrp lrr naa nab nac nah nak nal nan nao nap nar nba nbb nbc nbk nbl nbn nbo nbp nbr nca ncb ncc nch nck ncl ncn nco ncp ncr nha nhb nhc nhh nhk nhl nhn nhp nhr nka nkc nkk nkn nko nkp nkr nla nlb nlc nlh nlk nll nln nlo nlp nlr nna nnb nnc nnh nnk nnl nnn nno nnp no- noa nob noc noh nok nol non noo nop nor npa npb npc nph npl npn npo npp npr nra nrb nrc nrk nrl nrn nro nrp nrr oaa oab oac oah oak oal oan oao oap oar ob- oba obb obc obh obk obl obn obo obp obr oc- oca ocb occ och ock ocl ocn oco ocp ocr oha ohc ohh ohl ohn oho ohp ohr oka okb okc okk okl oko okp okr ola olb olc olk oll oln olo olp on- ona onb onc onh onk onl onn ono onp onr oo- ooa oob ooc ooh ook ool oon ooo oop oor op- opa opb opc oph opk opl opn opo opp opr or- ora orb orc orh ork orl orn oro orp orr p-p paa pab pac pah pak pal pan pao pap par pba pbb pbc pbk pbl pbn pbo pbp pbr pca pcb pcc pch pck pcl pcn pco pcp pcr pha phb phc phk phl phn pho php phr pka pkb pkc pkl pkn pko pkp pkr pla plb plc plh plk pll pln plo plp plr pn- pna pnb pnc pnh pnk pnl pnn pno pnp pnr poa pob poc poh pok pol pon poo pop por ppa ppb ppc pph ppk ppl ppn ppo ppp ppr pra prb prc prh prk prl prn pro prp prr ra- raa rab rac rah rak ral ran rao rap rar rba rbb rbc rbh rbk rbl rbn rbo rbp rbr rca rcb rcc rch rcl rcn rco rcp rcr rh- rha rhb rhc rhh rhl rhn rho rhp rhr rkb rkc rkk rko rkp rla rlc rlh rll rln rlo rlp rlr rna rnb rnc rnh rnn rno rnp rnr roa rob roc roh rok rol ron roo rop ror rpa rpb rpc rph rpk rpl rpn rpo rpp rpr rra rrb rrc rrh rrk rrl rrn rrp rrr