-al -th a-a a-b a-c a-t aaa aab aac aae aah aal aan aat ab- aba abb abc abe abh abl abn abt ac- aca acb acc ace ach acl acn act aea aeb aec aee aeh ael aen aet aha ahb ahc ahe ahh ahl ahn aht al- ala alb alc ale alh all aln alt an- ana anb anc ane anh anl ann ant at- ata atb atc ate ath atl atn att baa bab bac bae bah bal ban bat bba bbb bbc bbe bbh bbl bbn bbt bca bcb bcc bce bch bcl bcn bct be- bea beb bec bee beh bel ben bet bha bhb bhc bhe bhh bhl bht bla blb blc ble blh bll bln blt bna bnb bnc bne bnl bnn bnt bta btb btc bte bth btl btn btt c-- caa cab cac cae cah cal can cat cba cbb cbc cbe cbh cbl cbn cbt cca ccb ccc cce cch ccl ccn cct ce- cea ceb cec cee ceh cel cen cet ch- cha chb chc che chh chl chn cht cl- cla clb clc cle clh cll cln clt cn- cna cnb cnc cne cnh cnl cnn cnt cta ctb ctc cte cth ctl ctn ctt eaa eab eac eae eah eal ean eat eba ebb ebc ebe ebh ebl ebn ebt ec- eca ecb ecc ece ech ecl ecn ect eea eeb eec eee eel een eet eha ehb ehc ehe ehh ehl ehn eht ela elb elc ele elh ell eln elt en- ena enb enc ene enh enl enn ent eta etb etc ete eth etl etn ett haa hab hac hae hah hal han hat hba hbb hbc hbe hbh hbl hbn hbt hca hcb hcc hce hch hcl hcn hct he- hea heb hec hee heh hel hen het hha hhb hhc hhe hhh hhl hhn hht hla hlb hlc hle hlh hll hln hlt hna hnb hnc hne hnh hnl hnn hnt hta htb htc hte hth htl htn htt la- laa lab lac lae lah lal lan lat lba lbb lbc lbe lbh lbl lbt lca lcb lcc lce lch lcl lcn lct lea leb lec lee leh lel len let lha lhb lhc lhh lht lla llb llc lle lll lln llt lna lnb lnc lne lnh lnl lnn lnt lta ltb ltc lte lth ltl ltt naa nab nac nae nah nal nan nat nba nbb nbc nbe nbl nbn nbt nca ncb ncc nce nch ncl ncn nct ne- nea neb nec nee neh nel nen net nha nhb nhc nhe nhh nhl nhn nht nla nlb nlc nle nlh nll nln nlt nna nnb nnc nne nnh nnl nnn nnt nta ntb ntc nte nth ntn ntt taa tab tac tae tah tal tan tat tba tbb tbc tbe tbh tbl tbn tbt tca tcb tcc tce tch tcl tcn tct te- tea teb tec tee teh tel ten tet th- tha thb thc the thh thl thn tht tla tlc tle tlh tll tln tlt tna tnb tnc tne tnh tnl tnn tnt tta ttb ttc tte tth ttl ttn ttt