-er b-u bbb bbe bbf bbh bbr bbu be- beb bee bef beh ber beu bfb bfe bff bfh bfr bfu bhb bhe bhf bhh bhr bhu brb bre brf brh brr bru bub bue buf buh bur buu ebb ebe ebf ebh ebr ebu eeb eee eef eer ef- efb efe eff efh efr ehb ehe ehf ehh ehr ehu erb ere erf erh err eru eu- eub eue euf eur fbb fbe fbf fbh fbr fbu feb fee fef feh fer feu ffe fff ffh ffr ffu fhb fhe fhf fhh fhr frb fre frf frh frr fru fub fue fuf fur fuu hbb hbe hbf hbh hbr hbu he- heb hee hef heh her heu hfb hfe hff hfh hfr hfu hhb hhe hhf hhh hhr hhu hr- hrb hre hrf hrh hrr hru hub hue huf huh hur huu rbb rbe rbf rbh rbr rbu re- reb ree ref reh rer reu rfb rfe rff rfh rfr rfu rh- rhb rhe rhf rhh rhr rhu rrb rrf rrh rrr rru rub rue ruf ruh rur ruu ubb ube ubf ubh ubr ubu ueb uee uef ueh uer ufe uff ufh ufr ufu uhb uhe uhf uhh uhr uhu ur- urb ure urf urr uru uue uur uuu