-er b-u bbb bbe bbf bbg bbo bbr bbt bbu be- beb bee bef beg beo ber bet beu bfb bfe bff bfg bfo bfr bft bfu bgb bge bgf bgg bgo bgr bgt bgu bob boe bof bog boo bor bot bou brb bre brf brg bro brr brt bru btb bte btf btg bto btr btt btu bub bue buf bug buo bur but buu ebb ebe ebf ebg ebo ebr ebt ebu eeb eee eef eeg eeo eer eet ef- efb efe eff efg efo efr eft egb ege egf egg ego egr egt egu eo- eob eoe eof eog eoo eor eot eou erb ere erf erg ero err ert eru etb ete etf etg eto etr ett etu eu- eub eue euf eug eur eut fbb fbe fbf fbg fbo fbr fbt fbu feb fee fef feg feo fer fet feu ffe fff ffg ffo ffr fft ffu fgb fge fgf fgg fgr fgt fob foe fof fog foo for fot fou frb fre frf frg fro frr frt fru ftb fte ftf ftg fto ftr ftt ftu fub fue fuf fug fuo fur fut fuu gbe gbf gbg gbo gbr gbt gbu ge- geb gee gef geg geo ger get geu gfb gfe gff gfo gfr gft ggb ggg ggo ggr ggt ggu gob goe gof gog goo gor got gou grb gre grf grg gro grr grt gru gtb gte gtf gtg gto gtr gtt gtu gu- gub gue guf gug guo gur gut guu ob- obb obe obf obg obo obr obt obu oeb oee oef oeg oeo oer oet of- ofb ofe off ofg ofo ofr oft ofu oge ogf ogg ogo ogt oo- oob oof oog ooo oor oot or- orb ore orf org oro orr ort oru ot- otb ote otf otg oto otr ott otu ou- oue ouf ouo our out rbb rbe rbf rbg rbo rbr rbt rbu re- reb ree ref reg reo rer ret reu rfb rfe rff rfg rfo rfr rft rfu rgb rge rgf rgg rgo rgr rgt rob roe rof rog roo ror rot rou rrb rrf rrg rrr rrt rru rtb rte rtf rtg rto rtr rtt rtu rub rue ruf rug ruo rur rut ruu tbb tbe tbf tbg tbo tbr tbt tbu te- teb tee tef teg teo ter tet teu tfb tfe tff tfg tfo tfr tft tfu tgb tge tgf tgg tgo tgr tgt tgu to- tob toe tof tog too tor tot tou trb tre trf trg tro trr trt tru ttb tte ttf ttg tto ttr ttt ttu tub tue tuf tug tuo tur tut tuu ubb ube ubf ubg ubo ubr ubt ubu ueb uee uef ueg uer uet ufe uff ufg ufo ufr uft ufu ugb uge ugf ugg ugo ugr ugt ugu uob uoe uog uoo uor uot ur- urb ure urf urg uro urr urt uru utb ute utf uto utr utt utu uue uug uur uut uuu

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