-er bbb bbd bbe bbg bbi bbo bbr bbt bdb bdd bde bdg bdi bdo bdr bdt be- beb bed bee beg bei beo ber bet bgb bgd bge bgg bgi bgo bgr bgt bi- bib bid bie big bii bio bir bit bob bod boe bog boi boo bor bot brb brd bre brg bri bro brr brt btb btd bte btg bti bto btr btt dbb dbd dbe dbg dbi dbo dbr dbt ddb ddd dde ddg ddi ddo ddr ddt de- deb ded dee deg dei deo der det dgd dge dgg dgi dgr dgt di- dib did die dig dii dio dir dit dob dod doe dog doi doo dor dot drb drd dre drg dri dro drr drt dtb dtd dte dtg dti dto dtr dtt ebb ebd ebe ebg ebi ebo ebr ebt ed- edb edd ede edg edi edo edr edt eeb eed eee eeg eeo eer eet egb egd ege egg egi ego egr egt eib eid eie eig eii eio eir eit eo- eob eod eoe eog eoi eoo eor eot erb erd ere erg eri ero err ert etb etd ete etg eti eto etr ett g-d gbd gbe gbg gbi gbo gbr gbt gdb gdd gde gdi gdo gdr gdt ge- geb ged gee geg gei geo ger get ggb ggd ggg ggi ggo ggr ggt gib gid gie gig gii gio gir git gob god goe gog goi goo gor got grb grd gre grg gri gro grr grt gtb gtd gte gtg gti gto gtr gtt i-d ibb ibd ibe ibg ibi ibo ibr ibt idb idd ide idg idi ido idr idt ie- ied iee ieg iei ier iet igb igd ige igg igi igo igr igt iib iid iie iii iio iir iit io- iob iod ioe iog ioi ioo ior iot ir- irb ird ire irg iri iro irr irt itb itd ite itg iti ito itt o-i ob- obb obd obe obg obi obo obr obt odb odd ode odg odi odo odr odt oeb oed oee oeg oei oeo oer oet ogd oge ogg ogi ogo ogt oib oid oie oii oio oir oit oo- oob ood oog ooi ooo oor oot or- orb ord ore org ori oro orr ort ot- otb otd ote otg oti oto otr ott rbb rbd rbe rbg rbi rbo rbr rbt rdb rdd rde rdg rdi rdo rdr rdt re- reb red ree reg rei reo rer ret rgb rgd rge rgg rgi rgo rgr rgt rib rid rie rig rii rio rir rit rob rod roe rog roi roo ror rot rrb rrd rrg rri rrr rrt rtb rtd rte rtg rti rto rtr rtt tbb tbd tbe tbg tbi tbo tbr tbt tdb tdd tde tdg tdi tdo tdr tdt te- teb ted tee teg tei teo ter tet tgb tge tgg tgi tgo tgr tgt tib tid tie tig tii tio tir tit to- tob tod toe tog toi too tor tot trb trd tre trg tri tro trr trt ttb ttd tte ttg tti tto ttr ttt