-er -th bbb bbc bbe bbg bbh bbl bbr bbs bbt bcb bcc bce bcg bch bcl bcr bcs bct be- beb bec bee beg beh bel ber bes bet bgb bgc bge bgg bgh bgl bgr bgs bgt bhb bhc bhe bhg bhh bhl bhr bhs bht blb blc ble blg blh bll blr bls blt brb bre brg brh brl brr brs brt bsb bsc bse bsg bsh bsl bsr bss bst btb btc bte btg bth btl btr bts btt c-- cbb cbc cbe cbg cbh cbl cbr cbs cbt ccb ccc cce ccg cch ccl ccr ccs cct ce- ceb cec cee ceg ceh cel cer ces cet cgb cgc cge cgg cgh cgl cgr cgs cgt ch- chb chc che chg chh chl chr chs cht cl- clb clc cle clg clh cll clr cls clt crb crc cre crg crh crl crr crs crt csb csc cse csg csh csl csr css cst ctb ctc cte ctg cth ctl ctr cts ctt ebb ebc ebe ebg ebh ebl ebr ebs ebt ec- ecb ecc ece ecg ech ecl ecr ecs ect eeb eec eee eeg eel eer ees eet egb egc ege egg egh egl egr egs egt ehb ehc ehe ehg ehh ehl ehr ehs eht elb elc ele elg elh ell elr els elt erb erc ere erg erh erl err ers ert es- esb esc ese esg esh esl esr ess est etb etc ete etg eth etl etr ets ett gbc gbe gbg gbh gbl gbr gbs gbt gcb gcc gce gcg gch gcl gcr gcs gct ge- geb gec gee geg geh gel ger ges get ggb ggc ggg ggh ggr ggs ggt ghb ghc ghe ghg ghh ghl ghr ghs ght glb glc gle glg glh gll glr gls glt grb grc gre grg grh grl grr grs grt gsb gsc gse gsg gsl gsr gss gst gtb gtc gte gtg gth gtl gtr gts gtt hbb hbc hbe hbg hbh hbl hbr hbs hbt hcb hcc hce hcg hch hcl hcr hcs hct he- heb hec hee heg heh hel her hes het hgb hgc hge hgg hgh hgl hgr hgs hgt hhb hhc hhe hhg hhh hhl hhr hhs hht hlb hlc hle hlg hlh hll hlr hls hlt hr- hrb hrc hre hrg hrh hrl hrr hrs hrt hsb hsc hse hsg hsh hsl hsr hss hst htb htc hte htg hth htl htr hts htt lbb lbc lbe lbg lbh lbl lbr lbs lbt lcb lcc lce lcg lch lcl lcr lcs lct leb lec lee leg leh lel ler les let lgb lgc lge lgg lgh lgl lgr lgs lgt lhb lhc lhh lhr lhs lht llb llc lle llg lll llr lls llt lrb lrc lrg lrh lrr lrs lrt lsb lsc lse lsg lsh lsl lsr lss lst ltb ltc lte ltg lth ltl ltr lts ltt rbb rbc rbe rbg rbh rbl rbr rbs rbt rcb rcc rce rcg rch rcl rcr rcs rct re- reb rec ree reg reh rel rer res ret rgb rgc rge rgg rgh rgr rgs rgt rh- rhb rhc rhe rhg rhh rhl rhr rhs rht rlc rle rlg rlh rll rlr rls rlt rrb rrc rrg rrh rrl rrr rrs rrt rsb rsc rse rsg rsh rsl rsr rss rst rtb rtc rte rtg rtl rtr rts rtt sbb sbc sbe sbg sbh sbl sbr sbs sbt scb scc sce scg sch scl scr scs sct se- seb sec see seg seh sel ser ses set sgb sgc sge sgg sgh sgl sgr sgs sgt sh- shb shc she shg shh shl shr shs sht slb slc sle slg slh sll slr sls slt sr- srb src sre srg srh srl srr srs srt ss- ssb ssc sse ssg ssh ssl ssr sss sst stb stc ste stg sth stl str sts stt tbb tbc tbe tbg tbh tbl tbr tbs tbt tcb tcc tce tcg tch tcl tcr tcs tct te- teb tec tee teg teh tel ter tes tet tgb tgc tge tgg tgh tgl tgr tgs tgt th- thb thc the thg thh thl thr ths tht tlc tle tlg tlh tll tlr tls tlt trb trc tre trg trh trl trr trs trt tsb tsc tse tsg tsh tsl tsr tss tst ttb ttc tte ttg tth ttl ttr tts ttt