-al -ol a-a a-b a-c aaa aab aac aae aah aal aao aap aas ab- aba abb abc abe abh abl abo abp abs ac- aca acb acc ace ach acl aco acp acs aea aeb aec aee aeh ael aeo aep aes aha ahb ahc ahe ahh ahl aho ahp ahs al- ala alb alc ale alh all alo alp als aoa aob aoc aoe aoh aol aoo aop aos ap- apa apb apc ape aph apl apo app aps as- asa asb asc ase ash asl aso asp ass b-p baa bab bac bae bah bal bao bap bas bba bbb bbc bbe bbh bbl bbo bbp bbs bca bcb bcc bce bch bcl bco bcp bcs be- bea beb bec bee beh bel beo bep bes bha bhb bhc bhe bhh bhl bho bhp bhs bla blb blc ble blh bll blo blp bls boa bob boc boe boh bol boo bop bos bpa bpb bpc bpe bph bpl bpo bpp bps bsa bsb bsc bse bsh bsl bso bsp bss c-- caa cab cac cae cah cal cao cap cas cba cbb cbc cbe cbh cbl cbo cbp cbs cca ccb ccc cce cch ccl cco ccp ccs ce- cea ceb cec cee ceh cel ceo cep ces ch- cha chb chc che chh chl cho chp chs cl- cla clb clc cle clh cll clo clp cls co- coa cob coc coe coh col coo cop cos cpa cpb cpc cpe cph cpl cpo cpp cps csa csb csc cse csh csl cso csp css eaa eab eac eae eah eal eao eap eas eba ebb ebc ebe ebh ebl ebo ebp ebs ec- eca ecb ecc ece ech ecl eco ecs eea eeb eec eee eel eeo eep ees eha ehb ehc ehe ehh ehl eho ehp ehs ela elb elc ele elh ell elo elp els eo- eoa eob eoc eoe eoh eol eoo eop eos ep- epa epb epc epe eph epl epo epp eps es- esa esb esc ese esh esl eso esp ess haa hab hac hae hah hal hao hap has hba hbb hbc hbe hbh hbl hbo hbp hbs hca hcb hcc hce hch hcl hco hcp hcs he- hea heb hec hee heh hel heo hep hes hha hhb hhc hhe hhh hhl hho hhp hhs hla hlb hlc hle hlh hll hlo hlp hls hoa hob hoc hoe hoh hol hoo hop hos hpa hpb hpc hpe hph hpl hpo hpp hps hsa hsb hsc hse hsh hsl hsp hss l-p la- laa lab lac lae lah lal lao lap las lba lbb lbc lbe lbh lbl lbo lbp lbs lca lcb lcc lce lch lcl lco lcp lcs lea leb lec lee leh lel leo lep les lha lhb lhc lhh lho lhp lhs lla llb llc lle lll llo llp lls loa lob loc loe loh lol loo lop los lpa lpb lpc lpe lph lpl lpo lpp lps lsa lsb lsc lse lsh lsl lso lsp lss oaa oab oac oae oah oal oao oap oas ob- oba obb obc obe obh obl obo obp obs oc- oca ocb occ och ocl oco ocp ocs oea oeb oec oee oeh oel oeo oep oes oha ohc ohe ohh ohl oho ohp ohs ola olb olc ole oll olo olp ols oo- ooa oob ooc ooh ool ooo oop oos op- opa opb opc ope oph opl opo opp ops os- osa osb osc ose osh osl oso osp oss p-p paa pab pac pae pah pal pao pap pas pba pbb pbc pbe pbl pbo pbp pbs pca pcb pcc pce pch pcl pco pcp pcs pea peb pec pee peh pel peo pep pes pha phb phc phe phl pho php phs pla plb plc ple plh pll plo plp pls poa pob poc poe poh pol poo pop pos ppa ppb ppc ppe pph ppl ppo ppp pps ps- psa psb psc pse psh psl pso psp pss saa sab sac sae sah sal sao sap sas sba sbb sbc sbe sbh sbl sbo sbp sbs sca scb scc sce sch scl sco scp scs se- sea seb sec see seh sel seo sep ses sh- sha shb shc she shh shl sho shp shs sla slb slc sle slh sll slo slp sls soa sob soc soe soh sol soo sop sos spa spb spc spe sph spl spo spp sps ss- ssa ssb ssc sse ssh ssl sso ssp sss