-er b-u bbb bbe bbg bbr bbs bbt bbu be- beb bee beg ber bes bet beu bgb bge bgg bgr bgs bgt bgu bjg bjj bjr bjs bjt bju brb bre brg brj brr brs brt bru bsb bse bsg bsj bsr bss bst bsu btb bte btg btr bts btt btu bub bue bug buj bur bus but buu ebb ebe ebg ebj ebr ebs ebt ebu eeb eee eeg eer ees eet egb ege egg egr egs egt egu ejt eju erb ere erg err ers ert eru es- esb ese esg esr ess est esu etb ete etg etj etr ets ett etu eu- eub eue eug euj eur eus eut gbe gbg gbj gbr gbs gbt gbu ge- geb gee geg ger ges get geu ggb ggg ggj ggr ggs ggt ggu gje gjg gjr gjt grb gre grg grj grr grs grt gru gsb gse gsg gsj gsr gss gst gsu gtb gte gtg gtr gts gtt gtu gu- gub gue gug guj gur gus gut guu jbg jbj jbr jbs jbt jbu jeb jee jeg jej jer jes jet jeu jgb jge jgr jgs jgt jgu jjb jjg jjj jjr jjs jju jrb jrg jrr jrs jrt jsb jse jsg jsj jsr jss jst jsu jtb jte jtg jtr jts jtt jtu jub jue jug jur jus jut rbb rbe rbg rbr rbs rbt rbu re- reb ree reg rer res ret reu rgb rge rgg rgr rgs rgt rjg rjr rrb rrg rrr rrs rrt rru rsb rse rsg rsj rsr rss rst rsu rtb rte rtg rtj rtr rts rtt rtu rub rue rug rur rus rut ruu sbb sbe sbg sbj sbr sbs sbt sbu se- seb see seg sej ser ses set seu sgb sge sgg sgr sgs sgt sgu sjb sje sjj sjr sjs sjt sju sr- srb sre srg srj srr srs srt ss- ssb sse ssg ssj ssr sss sst ssu stb ste stg stj str sts stt stu sub sue sug sur sus sut suu tbb tbe tbg tbj tbr tbs tbt tbu te- teb tee teg tej ter tes tet teu tgb tge tgg tgr tgs tgt tgu tje tjr tjs tju trb tre trg trr trs trt tru tsb tse tsg tsj tsr tss tst tsu ttb tte ttg ttr tts ttt ttu tub tue tug tuj tur tus tut tuu ubb ube ubg ubr ubs ubt ubu ueb uee ueg uer ues uet ugb uge ugg ugr ugs ugt ugu ujs ur- urb ure urg urr urs urt uru usb use usg usj usr uss ust usu utb ute utj utr uts utt utu uue uug uur uus uut uuu