-al -er a-a a-b a-c aaa aab aac aae aah aal aan aap aar ab- aba abb abc abe abh abl abn abp abr ac- aca acb acc ace ach acl acn acp acr aea aeb aec aee aeh ael aen aep aer aha ahb ahc ahe ahh ahl ahn ahp ahr al- ala alb alc ale alh all aln alp alr an- ana anb anc ane anh anl ann anp anr ap- apa apb apc ape aph apl apn app apr ar- ara arb arc are arh arl arn arp arr b-p baa bab bac bae bah bal ban bap bar bba bbb bbc bbe bbh bbl bbn bbp bbr bca bcb bcc bce bch bcl bcn bcp bcr be- bea beb bec bee beh bel ben bep ber bha bhb bhc bhe bhh bhl bhp bhr bla blb blc ble blh bll bln blp blr bna bnb bnc bne bnl bnn bnp bnr bpa bpb bpc bpe bph bpl bpn bpp bpr bra brb bre brh brl brn brp brr c-- caa cab cac cae cah cal can cap car cba cbb cbc cbe cbh cbl cbn cbp cbr cca ccb ccc cce cch ccl ccn ccp ccr ce- cea ceb cec cee ceh cel cen cep cer ch- cha chb chc che chh chl chn chp chr cl- cla clb clc cle clh cll cln clp clr cn- cna cnb cnc cne cnh cnl cnn cnp cnr cpa cpb cpc cpe cph cpl cpn cpp cpr cra crb crc cre crh crl crn crp crr eaa eab eac eae eah eal ean eap ear eba ebb ebc ebe ebh ebl ebn ebp ebr ec- eca ecb ecc ece ech ecl ecn ecr eea eeb eec eee eel een eep eer eha ehb ehc ehe ehh ehl ehn ehp ehr ela elb elc ele elh ell eln elp elr en- ena enb enc ene enh enl enn enp enr ep- epa epb epc epe eph epl epn epp epr era erb erc ere erh erl ern erp err haa hab hac hae hah hal han hap har hba hbb hbc hbe hbh hbl hbn hbp hbr hca hcb hcc hce hch hcl hcn hcp hcr he- hea heb hec hee heh hel hen hep her hha hhb hhc hhe hhh hhl hhn hhp hhr hla hlb hlc hle hlh hll hln hlp hlr hna hnb hnc hne hnh hnl hnn hpa hpb hpc hpe hph hpl hpn hpp hpr hr- hra hrb hrc hre hrh hrl hrn hrp hrr l-p la- laa lab lac lae lah lal lan lap lar lba lbb lbc lbe lbh lbl lbp lbr lca lcb lcc lce lch lcl lcn lcp lcr lea leb lec lee leh lel len lep ler lha lhb lhc lhh lhp lhr lla llb llc lle lll lln llp llr lna lnb lnc lne lnh lnl lnn lnp lnr lpa lpb lpc lpe lph lpl lpn lpp lpr lra lrb lrc lrh lrn lrp lrr naa nab nac nae nah nal nan nap nar nba nbb nbc nbe nbl nbn nbp nbr nca ncb ncc nce nch ncl ncn ncp ncr ne- nea neb nec nee neh nel nen nep ner nha nhb nhc nhe nhh nhl nhn nhp nhr nla nlb nlc nle nlh nll nln nlp nlr nna nnb nnc nne nnh nnl nnn nnp npa npb npc npe nph npl npn npp npr nra nrb nrc nre nrl nrn nrp nrr p-p paa pab pac pae pah pal pan pap par pba pbb pbc pbe pbl pbn pbp pbr pca pcb pcc pce pch pcl pcn pcp pcr pea peb pec pee peh pel pen pep per pha phb phc phe phl phn php phr pla plb plc ple plh pll pln plp plr pn- pna pnb pnc pne pnh pnl pnn pnp pnr ppa ppb ppc ppe pph ppl ppn ppp ppr pra prb prc pre prh prl prn prp prr ra- raa rab rac rae rah ral ran rap rar rba rbb rbc rbe rbh rbl rbn rbp rbr rca rcb rcc rce rch rcl rcn rcp rcr re- rea reb rec ree reh rel ren rep rer rh- rha rhb rhc rhe rhh rhl rhn rhp rhr rla rlc rle rlh rll rln rlp rlr rna rnb rnc rnh rnn rnp rnr rpa rpb rpc rpe rph rpl rpn rpp rpr rra rrb rrc rrh rrl rrn rrp rrr