-er b-u bbb bbe bbg bbi bbm bbr bbt bbu be- beb bee beg bei bem ber bet beu bgb bge bgg bgi bgm bgr bgt bgu bi- bib bie big bii bim bir bit biu bmb bme bmg bmi bmm bmr bmt bmu brb bre brg bri brm brr brt bru btb bte btg bti btm btr btt btu bub bue bug bui bum bur but buu ebb ebe ebg ebi ebm ebr ebt ebu eeb eee eeg eem eer eet egb ege egg egi egm egr egt egu eib eie eig eii eim eir eit eiu em- emb eme emg emi emm emr emt emu erb ere erg eri erm err ert eru etb ete etg eti etm etr ett etu eu- eub eue eug eui eur eut gbe gbg gbi gbm gbr gbt gbu ge- geb gee geg gei gem ger get geu ggb ggg ggi ggm ggr ggt ggu gib gie gig gii gim gir git giu gmb gme gmg gmi gmm gmr gmt grb gre grg gri grm grr grt gru gtb gte gtg gti gtm gtr gtt gtu gu- gub gue gug gui gum gur gut guu ibb ibe ibg ibi ibm ibr ibt ibu ie- iee ieg iei iem ier iet igb ige igg igi igm igr igt igu iib iie iii iim iir iit iiu im- imb ime img imi imm imt imu ir- irb ire irg iri irm irr irt iru itb ite itg iti itm itt itu iu- iub iue iug iui ium iur iut m-r mbb mbe mbg mbi mbm mbr mbt mbu meb mee meg mei mem mer met meu mgb mge mgi mgm mgr mgt mgu mi- mib mie mig mii mim mir mit miu mmb mme mmg mmi mmm mmr mmt mmu mrb mre mrg mri mrm mrr mrt mru mtb mte mtg mti mtm mtr mtt mtu mub mue mug mui mum mur mut muu rbb rbe rbg rbi rbm rbr rbt rbu re- reb ree reg rei rem rer ret reu rgb rge rgg rgi rgr rgt rib rie rig rii rim rir rit rmb rme rmg rmi rmm rmr rmt rrb rrg rri rrm rrr rrt rru rtb rte rtg rti rtm rtr rtt rtu rub rue rug rui rum rur rut ruu tbb tbe tbg tbi tbm tbr tbt tbu te- teb tee teg tei tem ter tet teu tgb tge tgg tgi tgm tgr tgt tgu tib tie tig tii tim tir tit tiu tmb tme tmg tmi tmm tmr tmt tmu trb tre trg tri trm trr trt tru ttb tte ttg tti ttm ttr ttt ttu tub tue tug tui tum tur tut tuu ubb ube ubg ubi ubr ubt ubu ueb uee ueg uei uem uer uet ugb uge ugg ugi ugm ugr ugt ugu uib uie uig uii uim uir uit uiu um- umb ume umg umi umm umr umt umu ur- urb ure urg uri urm urr urt uru utb ute uti utm utr utt utu uue uug uum uur uut uuu