-al a-a a-b a-c aaa aab aac aae aal aam aap aas ab- aba abb abc abe abl abm abp abs ac- aca acb acc ace acl acm acp acs aea aeb aec aee ael aem aep aes al- ala alb alc ale all alm alp als ama amb amc ame aml amm amp ams ap- apa apb apc ape apl apm app aps as- asa asb asc ase asl asm asp ass b-p baa bab bac bae bal bam bap bas bba bbb bbc bbe bbl bbm bbp bbs bca bcb bcc bce bcl bcm bcp bcs be- bea beb bec bee bel bem bep bes bla blb blc ble bll blm blp bls bma bmb bmc bme bml bmm bmp bms bpa bpb bpc bpe bpl bpm bpp bps bsa bsb bsc bse bsl bsm bsp bss c-- caa cab cac cae cal cam cap cas cba cbb cbc cbe cbl cbm cbp cbs cca ccb ccc cce ccl ccm ccp ccs ce- cea ceb cec cee cel cem cep ces cl- cla clb clc cle cll clm clp cls cma cmb cmc cme cml cmm cmp cms cpa cpb cpc cpe cpl cpm cpp cps csa csb csc cse csl csm csp css eaa eab eac eae eal eam eap eas eba ebb ebc ebe ebl ebm ebp ebs ec- eca ecb ecc ece ecl ecm ecs eea eeb eec eee eel eem eep ees ela elb elc ele ell elm elp els em- ema emb emc eme eml emm emp ems ep- epa epb epc epe epl epm epp eps es- esa esb esc ese esl esm esp ess l-p la- laa lab lac lae lal lam lap las lba lbb lbc lbe lbl lbm lbp lbs lca lcb lcc lce lcl lcm lcp lcs lea leb lec lee lel lem lep les lla llb llc lle lll llm llp lls lma lmb lmc lme lml lmm lmp lms lpa lpb lpc lpe lpl lpm lpp lps lsa lsb lsc lse lsl lsm lsp lss maa mab mac mae mal mam map mas mba mbb mbc mbe mbl mbm mbp mbs mc- mca mcb mcc mce mcl mcm mcp mcs mea meb mec mee mel mem mep mes mla mlb mlc mle mll mlm mlp mls mma mmb mmc mme mml mmm mmp mms mpa mpb mpc mpe mpl mpm mpp mps msa msb msc mse msl msm msp mss p-p paa pab pac pae pal pam pap pas pba pbb pbc pbe pbl pbm pbp pbs pca pcb pcc pce pcl pcm pcp pcs pea peb pec pee pel pem pep pes pla plb plc ple pll plm plp pls pma pmb pmc pme pml pmm pmp pms ppa ppb ppc ppe ppl ppm ppp pps ps- psa psb psc pse psl psm psp pss saa sab sac sae sal sam sap sas sba sbb sbc sbe sbl sbm sbp sbs sca scb scc sce scl scm scp scs se- sea seb sec see sel sem sep ses sla slb slc sle sll slm slp sls sma smb smc sme sml smm smp sms spa spb spc spe spl spm spp sps ss- ssa ssb ssc sse ssl ssm ssp sss