-er b-u bbb bbd bbe bbg bbi bbr bbs bbt bbu bdb bdd bde bdg bdi bdr bds bdt bdu be- beb bed bee beg bei ber bes bet beu bgb bgd bge bgg bgi bgr bgs bgt bgu bi- bib bid bie big bii bir bis bit biu brb brd bre brg bri brr brs brt bru bsb bsd bse bsg bsi bsr bss bst bsu btb btd bte btg bti btr bts btt btu bub bud bue bug bui bur bus but buu dbb dbd dbe dbg dbi dbr dbs dbt dbu ddb ddd dde ddg ddi ddr dds ddt ddu de- deb ded dee deg dei der des det deu dgd dge dgg dgi dgr dgs dgt dgu di- dib did die dig dii dir dis dit diu drb drd dre drg dri drr drs drt dru dsb dsd dse dsg dsi dsr dss dst dsu dtb dtd dte dtg dti dtr dts dtt dtu dub dud due dug dui dur dus dut ebb ebd ebe ebg ebi ebr ebs ebt ebu ed- edb edd ede edg edi edr eds edt edu eeb eed eee eeg eer ees eet egb egd ege egg egi egr egs egt egu eib eid eie eig eii eir eis eit eiu erb erd ere erg eri err ers ert eru es- esb esd ese esg esi esr ess est esu etb etd ete etg eti etr ets ett etu eu- eub eud eue eug eui eur eus eut g-d gbd gbe gbg gbi gbr gbs gbt gbu gdb gdd gde gdi gdr gds gdt gdu ge- geb ged gee geg gei ger ges get geu ggb ggd ggg ggi ggr ggs ggt ggu gib gid gie gig gii gir gis git giu grb grd gre grg gri grr grs grt gru gsb gsd gse gsg gsi gsr gss gst gsu gtb gtd gte gtg gti gtr gts gtt gtu gu- gub gud gue gug gui gur gus gut guu i-d ibb ibd ibe ibg ibi ibr ibs ibt ibu idb idd ide idg idi idr ids idt idu ie- ied iee ieg iei ier ies iet igb igd ige igg igi igr igs igt igu iib iid iie iii iir iis iit iiu ir- irb ird ire irg iri irr irs irt iru is- isb isd ise isg isi isr iss ist isu itb itd ite itg iti its itt itu iu- iub iud iue iug iui iur ius iut rbb rbd rbe rbg rbi rbr rbs rbt rbu rdb rdd rde rdg rdi rdr rds rdt rdu re- reb red ree reg rei rer res ret reu rgb rgd rge rgg rgi rgr rgs rgt rib rid rie rig rii rir ris rit rrb rrd rrg rri rrr rrs rrt rru rsb rsd rse rsg rsi rsr rss rst rsu rtb rtd rte rtg rti rtr rts rtt rtu rub rud rue rug rui rur rus rut ruu sbb sbd sbe sbg sbi sbr sbs sbt sbu sdb sdd sde sdg sdi sdr sds sdt sdu se- seb sed see seg sei ser ses set seu sgb sgd sge sgg sgi sgr sgs sgt sgu sib sid sie sig sii sir sis sit siu sr- srb srd sre srg sri srr srs srt ss- ssb ssd sse ssg ssi ssr sss sst ssu stb std ste stg sti str sts stt stu sub sud sue sug sui sur sus sut suu tbb tbd tbe tbg tbi tbr tbs tbt tbu tdb tdd tde tdg tdi tdr tds tdt tdu te- teb ted tee teg tei ter tes tet teu tgb tge tgg tgi tgr tgs tgt tgu tib tid tie tig tii tir tis tit tiu trb trd tre trg tri trr trs trt tru tsb tsd tse tsg tsi tsr tss tst tsu ttb ttd tte ttg tti ttr tts ttt ttu tub tud tue tug tui tur tus tut tuu ubb ube ubg ubi ubr ubs ubt ubu udb udd ude udg udi udr uds udt udu ueb ued uee ueg uei uer ues uet ugb uge ugg ugi ugr ugs ugt ugu uib uid uie uig uii uir uis uit uiu ur- urb urd ure urg uri urr urs urt uru usb usd use usg usi usr uss ust usu utb utd ute uti utr uts utt utu uue uug uur uus uut uuu