-al a-a a-b a-c aaa aab aac aak aal aam aap ab- aba abb abc abk abl abm abp ac- aca acb acc ack acl acm acp aka akb akc akk akl akm akp al- ala alb alc alk all alm alp ama amb amc amk aml amm amp ap- apa apb apc apk apl apm app b-p baa bab bac bak bal bam bap bba bbb bbc bbk bbl bbm bbp bca bcb bcc bck bcl bcm bcp bka bkb bkc bkk bkl bkm bkp bla blb blc blk bll blm blp bma bmb bmc bmk bml bmm bmp bpa bpb bpc bpl bpm bpp c-- caa cab cac cak cal cam cap cba cbb cbc cbk cbl cbm cbp cca ccb ccc cck ccl ccm ccp cka ckb ckc ckm cl- cla clb clc clk cll clm clp cma cmb cmc cmk cml cmm cmp cpa cpb cpc cpk cpl cpm cpp ka- kaa kab kac kak kal kam kap kba kbb kbc kbk kbl kbm kbp kca kcb kcc kck kcl kcm kcp kkb kkc kkk kkl kkm kkp kl- kla klb klc klm kma kmb kmc kmk kml kmm kmp kpa kpc kpk kpl kpm kpp l-p la- laa lab lac lak lal lam lap lba lbb lbc lbk lbl lbm lbp lca lcb lcc lck lcl lcm lcp lka lkb lkl lkp lla llb llc llk lll llm llp lma lmb lmc lmk lml lmm lmp lpa lpb lpc lpk lpl lpm lpp maa mab mac mak mal mam map mba mbb mbc mbk mbl mbm mbp mc- mca mcb mcc mck mcl mcm mcp mka mkb mkc mkk mkl mkm mkp mla mlb mlc mlk mll mlm mlp mma mmb mmc mmk mml mmm mmp mpa mpb mpc mpk mpl mpm mpp p-p paa pab pac pak pal pam pap pba pbb pbc pbk pbl pbm pbp pca pcb pcc pck pcl pcm pcp pka pkb pkc pkl pkm pkp pla plb plc plk pll plm plp pma pmb pmc pmk pml pmm pmp ppa ppb ppc ppk ppl ppm ppp