-al a-a a-b a-c aaa aab aac aah aak aal aas ab- aba abb abc abh abk abl abs ac- aca acb acc ach ack acl acs aha ahb ahc ahh ahk ahl ahs aka akb akc akh akk akl aks al- ala alb alc alh alk all als as- asa asb asc ash ask asl ass baa bab bac bah bak bal bas bba bbb bbc bbh bbk bbl bbs bca bcb bcc bch bck bcl bcs bha bhb bhc bhh bhk bhl bhs bka bkb bkc bkk bkl bks bla blb blc blh blk bll bls bsa bsb bsc bsh bsk bsl bss c-- caa cab cac cah cak cal cas cba cbb cbc cbh cbk cbl cbs cca ccb ccc cch cck ccl ccs ch- cha chb chc chh chk chl chs cka ckb ckc ckh cks cl- cla clb clc clh clk cll cls csa csb csc csh csk csl css haa hab hac hah hak hal has hba hbb hbc hbh hbk hbl hbs hca hcb hcc hch hck hcl hcs hha hhb hhc hhh hhk hhl hhs hka hkb hkh hkk hkl hks hla hlb hlc hlh hll hls hsa hsb hsc hsh hsk hsl hss ka- kaa kab kac kah kak kal kas kba kbb kbc kbh kbk kbl kbs kca kcb kcc kch kck kcl kcs kha khh khk khs kkb kkc kkh kkk kkl kks kl- kla klb klc klh kls ksa ksb ksc ksh ksk ksl kss la- laa lab lac lah lak lal las lba lbb lbc lbh lbk lbl lbs lca lcb lcc lch lck lcl lcs lha lhb lhc lhh lhk lhs lka lkb lkh lkl lks lla llb llc llk lll lls lsa lsb lsc lsh lsk lsl lss saa sab sac sah sak sal sas sba sbb sbc sbh sbk sbl sbs sca scb scc sch sck scl scs sh- sha shb shc shh shk shl shs sk- ska skb skc skh skk skl sks sla slb slc slh slk sll sls ss- ssa ssb ssc ssh ssk ssl sss