-al a-a a-b a-c aaa aab aac aae aah aal aam aas ab- aba abb abc abe abh abl abm abs ac- aca acb acc ace ach acl acm acs aea aeb aec aee aeh ael aem aes aha ahb ahc ahe ahh ahl ahm ahs al- ala alb alc ale alh all alm als ama amb amc ame amh aml amm ams as- asa asb asc ase ash asl asm ass baa bab bac bae bah bal bam bas bba bbb bbc bbe bbh bbl bbm bbs bca bcb bcc bce bch bcl bcm bcs be- bea beb bec bee beh bel bem bes bha bhb bhc bhe bhh bhl bhm bhs bla blb blc ble blh bll blm bls bma bmb bmc bme bmh bml bmm bms bsa bsb bsc bse bsh bsl bsm bss c-- caa cab cac cae cah cal cam cas cba cbb cbc cbe cbh cbl cbm cbs cca ccb ccc cce cch ccl ccm ccs ce- cea ceb cec cee ceh cel cem ces ch- cha chb chc che chh chl chm chs cl- cla clb clc cle clh cll clm cls cma cmb cmc cme cmh cml cmm cms csa csb csc cse csh csl csm css eaa eab eac eae eah eal eam eas eba ebb ebc ebe ebh ebl ebm ebs ec- eca ecb ecc ece ech ecl ecm ecs eea eeb eec eee eel eem ees eha ehb ehc ehe ehh ehl ehm ehs ela elb elc ele elh ell elm els em- ema emb emc eme emh eml emm ems es- esa esb esc ese esh esl esm ess haa hab hac hae hah hal ham has hba hbb hbc hbe hbh hbl hbm hbs hca hcb hcc hce hch hcl hcm hcs he- hea heb hec hee heh hel hem hes hha hhb hhc hhe hhh hhl hhm hhs hla hlb hlc hle hlh hll hlm hls hma hmb hmc hme hmh hml hmm hms hsa hsb hsc hse hsh hsl hsm hss la- laa lab lac lae lah lal lam las lba lbb lbc lbe lbh lbl lbm lbs lca lcb lcc lce lch lcl lcm lcs lea leb lec lee leh lel lem les lha lhb lhc lhh lhs lla llb llc lle lll llm lls lma lmb lmc lme lmh lml lmm lms lsa lsb lsc lse lsh lsl lsm lss maa mab mac mae mah mal mam mas mba mbb mbc mbe mbh mbl mbm mbs mc- mca mcb mcc mce mch mcl mcm mcs mea meb mec mee meh mel mem mes mha mhc mhh mhl mhm mhs mla mlb mlc mle mlh mll mlm mls mma mmb mmc mme mmh mml mmm mms msa msb msc mse msh msl msm mss saa sab sac sae sah sal sam sas sba sbb sbc sbe sbh sbl sbm sbs sca scb scc sce sch scl scm scs se- sea seb sec see seh sel sem ses sh- sha shb shc she shh shl shm shs sla slb slc sle slh sll slm sls sma smb smc sme smh sml smm sms ss- ssa ssb ssc sse ssh ssl ssm sss