-al a-a a-b a-c aaa aab aac aak aal aam aas ab- aba abb abc abk abl abm abs ac- aca acb acc ack acl acm acs aka akb akc akk akl akm aks al- ala alb alc alk all alm als ama amb amc amk aml amm ams as- asa asb asc ask asl asm ass baa bab bac bak bal bam bas bba bbb bbc bbk bbl bbm bbs bca bcb bcc bck bcl bcm bcs bka bkb bkc bkk bkl bkm bks bla blb blc blk bll blm bls bma bmb bmc bmk bml bmm bms bsa bsb bsc bsk bsl bsm bss c-- caa cab cac cak cal cam cas cba cbb cbc cbk cbl cbm cbs cca ccb ccc cck ccl ccm ccs cka ckb ckc ckm cks cl- cla clb clc clk cll clm cls cma cmb cmc cmk cml cmm cms csa csb csc csk csl csm css ka- kaa kab kac kak kal kam kas kba kbb kbc kbk kbl kbm kbs kca kcb kcc kck kcl kcm kcs kkb kkc kkk kkl kkm kks kl- kla klb klc klm kls kma kmb kmc kmk kml kmm kms ksa ksb ksc ksk ksl ksm kss la- laa lab lac lak lal lam las lba lbb lbc lbk lbl lbm lbs lca lcb lcc lck lcl lcm lcs lka lkb lkl lks lla llb llc llk lll llm lls lma lmb lmc lmk lml lmm lms lsa lsb lsc lsk lsl lsm lss maa mab mac mak mal mam mas mba mbb mbc mbk mbl mbm mbs mc- mca mcb mcc mck mcl mcm mcs mka mkb mkc mkk mkl mkm mks mla mlb mlc mlk mll mlm mls mma mmb mmc mmk mml mmm mms msa msb msc msk msl msm mss saa sab sac sak sal sam sas sba sbb sbc sbk sbl sbm sbs sca scb scc sck scl scm scs sk- ska skb skc skk skl skm sks sla slb slc slk sll slm sls sma smb smc smk sml smm sms ss- ssa ssb ssc ssk ssl ssm sss