-al a-a a-b a-c aaa aab aac aae aah aal aap aas ab- aba abb abc abe abh abl abp abs ac- aca acb acc ace ach acl acp acs aea aeb aec aee aeh ael aep aes aha ahb ahc ahe ahh ahl ahp ahs al- ala alb alc ale alh all alp als ap- apa apb apc ape aph apl app aps as- asa asb asc ase ash asl asp ass b-p baa bab bac bae bah bal bap bas bba bbb bbc bbe bbh bbl bbp bbs bca bcb bcc bce bch bcl bcp bcs be- bea beb bec bee beh bel bep bes bha bhb bhc bhe bhh bhl bhp bhs bla blb blc ble blh bll blp bls bpa bpb bpc bpe bph bpl bpp bps bsa bsb bsc bse bsh bsl bsp bss c-- caa cab cac cae cah cal cap cas cba cbb cbc cbe cbh cbl cbp cbs cca ccb ccc cce cch ccl ccp ccs ce- cea ceb cec cee ceh cel cep ces ch- cha chb chc che chh chl chp chs cl- cla clb clc cle clh cll clp cls cpa cpb cpc cpe cph cpl cpp cps csa csb csc cse csh csl csp css eaa eab eac eae eah eal eap eas eba ebb ebc ebe ebh ebl ebp ebs ec- eca ecb ecc ece ech ecl ecs eea eeb eec eee eel eep ees eha ehb ehc ehe ehh ehl ehp ehs ela elb elc ele elh ell elp els ep- epa epb epc epe eph epl epp eps es- esa esb esc ese esh esl esp ess haa hab hac hae hah hal hap has hba hbb hbc hbe hbh hbl hbp hbs hca hcb hcc hce hch hcl hcp hcs he- hea heb hec hee heh hel hep hes hha hhb hhc hhe hhh hhl hhp hhs hla hlb hlc hle hlh hll hlp hls hpa hpb hpc hpe hph hpl hpp hps hsa hsb hsc hse hsh hsl hsp hss l-p la- laa lab lac lae lah lal lap las lba lbb lbc lbe lbh lbl lbp lbs lca lcb lcc lce lch lcl lcp lcs lea leb lec lee leh lel lep les lha lhb lhc lhh lhp lhs lla llb llc lle lll llp lls lpa lpb lpc lpe lph lpl lpp lps lsa lsb lsc lse lsh lsl lsp lss p-p paa pab pac pae pah pal pap pas pba pbb pbc pbe pbl pbp pbs pca pcb pcc pce pch pcl pcp pcs pea peb pec pee peh pel pep pes pha phb phc phe phl php phs pla plb plc ple plh pll plp pls ppa ppb ppc ppe pph ppl ppp pps ps- psa psb psc pse psh psl psp pss saa sab sac sae sah sal sap sas sba sbb sbc sbe sbh sbl sbp sbs sca scb scc sce sch scl scp scs se- sea seb sec see seh sel sep ses sh- sha shb shc she shh shl shp shs sla slb slc sle slh sll slp sls spa spb spc spe sph spl spp sps ss- ssa ssb ssc sse ssh ssl ssp sss