-er -ic -th b-u bbb bbc bbe bbf bbg bbh bbi bbl bbr bbt bbu bcb bcc bce bcf bcg bch bci bcl bcr bct bcu be- beb bec bee bef beg beh bei bel ber bet beu bfb bfc bfe bff bfg bfh bfi bfl bfr bft bfu bgb bgc bge bgf bgg bgh bgi bgl bgr bgt bgu bhb bhc bhe bhf bhg bhh bhi bhl bhr bht bhu bi- bib bic bie bif big bih bii bil bir bit biu blb blc ble blf blg blh bli bll blr blt blu brb bre brf brg brh bri brl brr brt bru btb btc bte btf btg bth bti btl btr btt btu bub buc bue buf bug buh bui bul bur but buu c-- cbb cbc cbe cbf cbg cbh cbi cbl cbr cbt cbu ccb ccc cce ccf ccg cch cci ccl ccr cct ccu ce- ceb cec cee cef ceg ceh cei cel cer cet ceu cfb cfc cfe cff cfg cfh cfi cfl cfr cft cfu cgb cgc cge cgg cgh cgi cgl cgr cgt cgu ch- chb chc che chf chg chh chi chl chr cht chu ci- cib cic cie cif cig cih cii cil cir cit ciu cl- clb clc cle clf clg clh cli cll clr clt clu crb crc cre crf crg crh cri crl crr crt cru ctb ctc cte ctf ctg cth cti ctl ctr ctt ctu cub cuc cue cuf cug cuh cui cul cur cut cuu ebb ebc ebe ebf ebg ebh ebi ebl ebr ebt ebu ec- ecb ecc ece ecf ecg ech eci ecl ecr ect ecu eeb eec eee eef eeg eel eer eet ef- efb efc efe eff efg efh efi efl efr eft egb egc ege egf egg egh egi egl egr egt egu ehb ehc ehe ehf ehg ehh ehi ehl ehr eht ehu eib eic eie eif eig eii eil eir eit eiu elb elc ele elf elg elh eli ell elr elt elu erb erc ere erf erg erh eri erl err ert eru etb etc ete etf etg eth eti etl etr ett etu eu- eub euc eue euf eug eui eul eur eut fbb fbc fbe fbf fbg fbh fbi fbl fbr fbt fbu fcb fcc fce fcf fcg fci fcl fcr fct fcu feb fec fee fef feg feh fei fel fer fet feu ffc ffe fff ffg ffh ffi ffl ffr fft ffu fgb fgc fge fgf fgg fgh fgi fgl fgr fgt fhb fhc fhe fhf fhg fhh fhi fhl fhr fib fic fie fif fig fih fii fil fir fit fiu flb flc fle flf flg fli fll flr flt flu frb frc fre frf frg frh fri frl frr frt fru ftb ftc fte ftf ftg fth fti ftl ftr ftt ftu fub fue fuf fug fui ful fur fut fuu gbc gbe gbf gbg gbh gbi gbl gbr gbt gbu gcb gcc gce gcf gcg gch gci gcl gcr gct gcu ge- geb gec gee gef geg geh gei gel ger get geu gfb gfc gfe gff gfh gfi gfl gfr gft ggb ggc ggg ggh ggi ggr ggt ggu ghb ghc ghe ghg ghh ghi ghl ghr ght gib gic gie gif gig gih gii gil gir git giu glb glc gle glf glg glh gli gll glr glt glu grb grc gre grf grg grh gri grl grr grt gru gtb gtc gte gtf gtg gth gti gtl gtr gtt gtu gu- gub guc gue guf gug gui gul gur gut guu h-i hbb hbc hbe hbf hbg hbh hbi hbl hbr hbt hbu hcb hcc hce hcf hcg hch hci hcl hcr hct he- heb hec hee hef heg heh hei hel her het heu hfb hfc hfe hff hfg hfh hfi hfl hfr hft hfu hgb hgc hge hgf hgg hgh hgi hgl hgr hgt hgu hhb hhc hhe hhf hhg hhh hhi hhl hhr hht hhu hib hic hie hif hig hih hii hil hir hit hiu hlb hlc hle hlf hlg hlh hli hll hlr hlt hlu hr- hrb hrc hre hrf hrg hrh hri hrl hrr hrt hru htb htc hte htf htg hth hti htl htr htt hub huc hue huf hug huh hui hul hur hut huu i-f ibb ibc ibe ibf ibg ibh ibi ibl ibr ibt ibu icb icc ice icf icg ich ici icl icr ict icu ie- iec iee ief ieg iei iel ier iet ifb ifc ife iff ifg ifi ifl ifr ift ifu igb igc ige igf igg igh igi igl igr igt igu ihb ihc ihe ihf ihg ihh ihi ihl ihr iht ihu iib iic iie iif iih iii iil iir iit iiu il- ilb ilc ile ilf ilg ilh ili ill ilr ilt ilu ir- irb irc ire irf irg iri irl irr irt iru itb itc ite itf itg ith iti itl itt itu iu- iub iuc iue iug iui iur iut lbb lbc lbe lbf lbg lbh lbi lbl lbr lbt lbu lcb lcc lce lcf lcg lch lci lcl lcr lct lcu leb lec lee lef leg leh lei lel ler let leu lfb lfc lfe lff lfg lfh lfi lfl lfr lft lfu lgb lgc lge lgf lgg lgh lgi lgl lgr lgt lgu lhb lhc lhf lhh lhi lhr lht lhu lib lic lie lif lig lih lii lil lir lit liu llb llc lle llf llg lli lll llr llt llu lrb lrc lrf lrg lrh lri lrr lrt lru ltb ltc lte ltf ltg lth lti ltl ltr ltt ltu lub luc lue luf lug luh lui lul lur lut luu rbb rbc rbe rbf rbg rbh rbi rbl rbr rbt rbu rcb rcc rce rcf rcg rch rci rcl rcr rct rcu re- reb rec ree ref reg reh rei rel rer ret reu rfb rfc rfe rff rfg rfh rfi rfl rfr rft rfu rgb rgc rge rgf rgg rgh rgi rgr