-al a-a a-b a-c aaa aab aac aal aam aan aas ab- aba abb abc abl abm abn abs ac- aca acb acc acl acm acn acs al- ala alb alc all alm aln als ama amb amc aml amm amn ams an- ana anb anc anl anm ann ans as- asa asb asc asl asm asn ass baa bab bac bal bam ban bas bba bbb bbc bbl bbm bbn bbs bca bcb bcc bcl bcm bcn bcs bla blb blc bll blm bln bls bma bmb bmc bml bmm bmn bms bna bnb bnc bnl bnn bns bsa bsb bsc bsl bsm bsn bss c-- caa cab cac cal cam can cas cba cbb cbc cbl cbm cbn cbs cca ccb ccc ccl ccm ccn ccs cl- cla clb clc cll clm cln cls cma cmb cmc cml cmm cmn cms cn- cna cnb cnc cnl cnm cnn cns csa csb csc csl csm csn css la- laa lab lac lal lam lan las lba lbb lbc lbl lbm lbs lca lcb lcc lcl lcm lcn lcs lla llb llc lll llm lln lls lma lmb lmc lml lmm lmn lms lna lnb lnc lnl lnm lnn lns lsa lsb lsc lsl lsm lsn lss maa mab mac mal mam man mas mba mbb mbc mbl mbm mbs mc- mca mcb mcc mcl mcm mcn mcs mla mlb mlc mll mlm mln mls mma mmb mmc mml mmm mmn mms mna mnb mnc mnl mnm mnn mns msa msb msc msl msm msn mss naa nab nac nal nam nan nas nba nbb nbc nbl nbm nbn nbs nca ncb ncc ncl ncm ncn ncs nla nlb nlc nll nlm nln nls nma nmb nmc nml nmm nmn nms nna nnb nnc nnl nnm nnn nns nsa nsb nsc nsl nsm nsn nss saa sab sac sal sam san sas sba sbb sbc sbl sbm sbn sbs sca scb scc scl scm scn scs sla slb slc sll slm sln sls sma smb smc sml smm smn sms sna snb snc snl snm snn sns ss- ssa ssb ssc ssl ssm ssn sss