-er b-u bbb bbe bbf bbg bbh bbi bbr bbs bbu be- beb bee bef beg beh bei ber bes beu bfb bfe bff bfg bfh bfi bfr bfs bfu bgb bge bgf bgg bgh bgi bgr bgs bgu bhb bhe bhf bhg bhh bhi bhr bhs bhu bi- bib bie bif big bih bii bir bis biu brb bre brf brg brh bri brr brs bru bsb bse bsf bsg bsh bsi bsr bss bsu bub bue buf bug buh bui bur bus buu ebb ebe ebf ebg ebh ebi ebr ebs ebu eeb eee eef eeg eer ees ef- efb efe eff efg efh efi efr efs egb ege egf egg egh egi egr egs egu ehb ehe ehf ehg ehh ehi ehr ehs ehu eib eie eif eig eii eir eis eiu erb ere erf erg erh eri err ers eru es- esb ese esf esg esh esi esr ess esu eu- eub eue euf eug eui eur eus fbb fbe fbf fbg fbh fbi fbr fbs fbu feb fee fef feg feh fei fer fes feu ffe fff ffg ffh ffi ffr ffs ffu fgb fge fgf fgg fgh fgi fgr fgs fhb fhe fhf fhg fhh fhi fhr fhs fib fie fif fig fih fii fir fis fiu frb fre frf frg frh fri frr frs fru fsb fse fsf fsg fsh fsi fsr fss fsu fub fue fuf fug fui fur fus fuu gbe gbf gbg gbh gbi gbr gbs gbu ge- geb gee gef geg geh gei ger ges geu gfb gfe gff gfh gfi gfr gfs ggb ggg ggh ggi ggr ggs ggu ghb ghe ghg ghh ghi ghr ghs gib gie gif gig gih gii gir gis giu grb gre grf grg grh gri grr grs gru gsb gse gsf gsg gsi gsr gss gsu gu- gub gue guf gug gui gur gus guu h-i hbb hbe hbf hbg hbh hbi hbr hbs hbu he- heb hee hef heg heh hei her hes heu hfb hfe hff hfg hfh hfi hfr hfs hfu hgb hge hgf hgg hgh hgi hgr hgs hgu hhb hhe hhf hhg hhh hhi hhr hhs hhu hib hie hif hig hih hii hir his hiu hr- hrb hre hrf hrg hrh hri hrr hrs hru hsb hse hsf hsg hsh hsi hsr hss hsu hub hue huf hug huh hui hur hus huu i-f ibb ibe ibf ibg ibh ibi ibr ibs ibu ie- iee ief ieg iei ier ies ifb ife iff ifg ifi ifr ifs ifu igb ige igf igg igh igi igr igs igu ihb ihe ihf ihg ihh ihi ihr ihs ihu iib iie iif iih iii iir iis iiu ir- irb ire irf irg iri irr irs iru is- isb ise isf isg ish isi isr iss isu iu- iub iue iug iui iur ius rbb rbe rbf rbg rbh rbi rbr rbs rbu re- reb ree ref reg reh rei rer res reu rfb rfe rff rfg rfh rfi rfr rfs rfu rgb rge rgf rgg rgh rgi rgr rgs rh- rhb rhe rhf rhg rhh rhi rhr rhs rhu rib rie rif rig rih rii rir ris rrb rrf rrg rrh rri rrr rrs rru rsb rse rsf rsg rsh rsi rsr rss rsu rub rue ruf rug ruh rui rur rus ruu sbb sbe sbf sbg sbh sbi sbr sbs sbu se- seb see sef seg seh sei ser ses seu sfb sfe sff sfg sfh sfi sfr sfs sfu sgb sge sgf sgg sgh sgi sgr sgs sgu sh- shb she shf shg shh shi shr shs shu sib sie sif sig sih sii sir sis siu sr- srb sre srf srg srh sri srr srs ss- ssb sse ssf ssg ssh ssi ssr sss ssu sub sue suf sug suh sui sur sus suu ubb ube ubf ubg ubh ubi ubr ubs ubu ueb uee uef ueg ueh uei uer ues ufe uff ufg ufh ufi ufr ufs ufu ugb uge ugf ugg ugh ugi ugr ugs ugu uhb uhe uhf uhh uhi uhr uhs uhu uib uie uif uig uii uir uis uiu ur- urb ure urf urg uri urr urs uru usb use usf usg ush usi usr uss usu uue uug uur uus uuu