-al -er a-a a-b a-c aaa aab aac aae aah aal aam aar ab- aba abb abc abe abh abl abm abr ac- aca acb acc ace ach acl acm acr aea aeb aec aee aeh ael aem aer aha ahb ahc ahe ahh ahl ahm ahr al- ala alb alc ale alh all alm alr ama amb amc ame amh aml amm amr ar- ara arb arc are arh arl arm arr baa bab bac bae bah bal bam bar bba bbb bbc bbe bbh bbl bbm bbr bca bcb bcc bce bch bcl bcm bcr be- bea beb bec bee beh bel bem ber bha bhb bhc bhe bhh bhl bhm bhr bla blb blc ble blh bll blm blr bma bmb bmc bme bmh bml bmm bmr bra brb bre brh brl brm brr c-- caa cab cac cae cah cal cam car cba cbb cbc cbe cbh cbl cbm cbr cca ccb ccc cce cch ccl ccm ccr ce- cea ceb cec cee ceh cel cem cer ch- cha chb chc che chh chl chm chr cl- cla clb clc cle clh cll clm clr cma cmb cmc cme cmh cml cmm cmr cra crb crc cre crh crl crm crr eaa eab eac eae eah eal eam ear eba ebb ebc ebe ebh ebl ebm ebr ec- eca ecb ecc ece ech ecl ecm ecr eea eeb eec eee eel eem eer eha ehb ehc ehe ehh ehl ehm ehr ela elb elc ele elh ell elm elr em- ema emb emc eme emh eml emm emr era erb erc ere erh erl erm err haa hab hac hae hah hal ham har hba hbb hbc hbe hbh hbl hbm hbr hca hcb hcc hce hch hcl hcm hcr he- hea heb hec hee heh hel hem her hha hhb hhc hhe hhh hhl hhm hhr hla hlb hlc hle hlh hll hlm hlr hma hmb hmc hme hmh hml hmm hmr hr- hra hrb hrc hre hrh hrl hrm hrr la- laa lab lac lae lah lal lam lar lba lbb lbc lbe lbh lbl lbm lbr lca lcb lcc lce lch lcl lcm lcr lea leb lec lee leh lel lem ler lha lhb lhc lhh lhr lla llb llc lle lll llm llr lma lmb lmc lme lmh lml lmm lmr lra lrb lrc lrh lrm lrr m-r maa mab mac mae mah mal mam mar mba mbb mbc mbe mbh mbl mbm mbr mc- mca mcb mcc mce mch mcl mcm mcr mea meb mec mee meh mel mem mer mha mhc mhh mhl mhm mhr mla mlb mlc mle mlh mll mlm mlr mma mmb mmc mme mmh mml mmm mmr mra mrb mrc mre mrh mrl mrm mrr ra- raa rab rac rae rah ral ram rar rba rbb rbc rbe rbh rbl rbm rbr rca rcb rcc rce rch rcl rcm rcr re- rea reb rec ree reh rel rem rer rh- rha rhb rhc rhe rhh rhl rhm rhr rla rlc rle rlh rll rlm rlr rma rmb rmc rme rmh rml rmm rmr rra rrb rrc rrh rrl rrm rrr