-er bbb bbe bbg bbm bbn bbr bbt be- beb bee beg bem ben ber bet bgb bge bgg bgm bgn bgr bgt bmb bme bmg bmm bmn bmr bmt bnb bne bng bnn bnr bnt brb bre brg brm brn brr brt btb bte btg btm btn btr btt ebb ebe ebg ebm ebn ebr ebt eeb eee eeg eem een eer eet egb ege egg egm egn egr egt em- emb eme emg emm emn emr emt en- enb ene eng enm enn enr ent erb ere erg erm ern err ert etb ete etg etm etn etr ett gbe gbg gbm gbn gbr gbt ge- geb gee geg gem gen ger get ggb ggg ggm ggn ggr ggt gmb gme gmg gmm gmn gmr gmt gnb gne gnm gnn gnr gnt grb gre grg grm grn grr grt gtb gte gtg gtm gtn gtr gtt m-r mbb mbe mbg mbm mbr mbt meb mee meg mem men mer met mgb mge mgm mgn mgr mgt mmb mme mmg mmm mmn mmr mmt mnb mne mng mnm mnn mnr mnt mrb mre mrg mrm mrn mrr mrt mtb mte mtg mtm mtn mtr mtt nbb nbe nbg nbm nbn nbr nbt ne- neb nee neg nem nen ner net ngb nge ngg ngm ngn ngt nmb nme nmg nmm nmn nmr nmt nnb nne nng nnm nnn nnt nrb nre nrg nrm nrn nrr nrt ntb nte ntg ntm ntn ntr ntt rbb rbe rbg rbm rbn rbr rbt re- reb ree reg rem ren rer ret rgb rge rgg rgn rgr rgt rmb rme rmg rmm rmn rmr rmt rnb rng rnm rnn rnr rnt rrb rrg rrm rrn rrr rrt rtb rte rtg rtm rtn rtr rtt tbb tbe tbg tbm tbn tbr tbt te- teb tee teg tem ten ter tet tgb tge tgg tgm tgn tgr tgt tmb tme tmg tmm tmn tmr tmt tnb tne tng tnm tnn tnr tnt trb tre trg trm trn trr trt ttb tte ttg ttm ttn ttr ttt