-al a-a a-b a-c aaa aab aac aae aah aak aal aap ab- aba abb abc abe abh abk abl abp ac- aca acb acc ace ach ack acl acp aea aeb aec aee aeh aek ael aep aha ahb ahc ahe ahh ahk ahl ahp aka akb akc ake akh akk akl akp al- ala alb alc ale alh alk all alp ap- apa apb apc ape aph apk apl app b-p baa bab bac bae bah bak bal bap bba bbb bbc bbe bbh bbk bbl bbp bca bcb bcc bce bch bck bcl bcp be- bea beb bec bee beh bek bel bep bha bhb bhc bhe bhh bhk bhl bhp bka bkb bkc bke bkk bkl bkp bla blb blc ble blh blk bll blp bpa bpb bpc bpe bph bpl bpp c-- caa cab cac cae cah cak cal cap cba cbb cbc cbe cbh cbk cbl cbp cca ccb ccc cce cch cck ccl ccp ce- cea ceb cec cee ceh cek cel cep ch- cha chb chc che chh chk chl chp cka ckb ckc ckh cl- cla clb clc cle clh clk cll clp cpa cpb cpc cpe cph cpk cpl cpp eaa eab eac eae eah eak eal eap eba ebb ebc ebe ebh ebk ebl ebp ec- eca ecb ecc ece ech eck ecl eea eeb eec eee eek eel eep eha ehb ehc ehe ehh ehl ehp eka ekb ekc eke ekh ekl ekp ela elb elc ele elh elk ell elp ep- epa epb epc epe eph epl epp haa hab hac hae hah hak hal hap hba hbb hbc hbe hbh hbk hbl hbp hca hcb hcc hce hch hck hcl hcp he- hea heb hec hee heh hek hel hep hha hhb hhc hhe hhh hhk hhl hhp hka hkb hkh hkk hkl hkp hla hlb hlc hle hlh hll hlp hpa hpb hpc hpe hph hpk hpl hpp ka- kaa kab kac kae kah kak kal kap kba kbb kbc kbe kbh kbk kbl kbp kca kcb kcc kce kch kck kcl kcp ke- kea keb kec kee keh kek kel kep kha khe khh khk kkb kkc kke kkh kkk kkl kkp kl- kla klb klc klh kpa kpc kpe kph kpk kpl kpp l-p la- laa lab lac lae lah lak lal lap lba lbb lbc lbe lbh lbk lbl lbp lca lcb lcc lce lch lck lcl lcp lea leb lec lee leh lek lel lep lha lhb lhc lhh lhk lhp lka lkb lkh lkl lkp lla llb llc lle llk lll llp lpa lpb lpc lpe lph lpk lpl lpp p-p paa pab pac pae pah pak pal pap pba pbb pbc pbe pbk pbl pbp pca pcb pcc pce pch pck pcl pcp pea peb pec pee peh pek pel pep pha phb phc phe phk phl php pka pkb pkc pke pkl pkp pla plb plc ple plh plk pll plp ppa ppb ppc ppe pph ppk ppl ppp