bbb bbd bbe bbf bbg bbk bbt bdb bdd bde bdf bdg bdk bdt be- beb bed bee bef beg bek bet bfb bfd bfe bff bfg bft bgb bgd bge bgf bgg bgk bgt bkb bke bkf bkg bkk bkt btb btd bte btf btg btk btt dbb dbd dbe dbf dbg dbk dbt ddb ddd dde ddf ddg ddk ddt de- deb ded dee def deg dek det dfb dfd dfe dff dfg dfk dft dgd dge dgf dgg dgk dgt dkb dke dkg dkk dkt dtb dtd dte dtf dtg dtk dtt ebb ebd ebe ebf ebg ebk ebt ed- edb edd ede edf edg edk edt eeb eed eee eef eeg eek eet ef- efb efd efe eff efg eft egb egd ege egf egg egt ekb ekd eke ekf ekg ekt etb etd ete etf etg etk ett fbb fbd fbe fbf fbg fbk fbt fdb fdd fde fdf fdg fdk fdt feb fed fee fef feg fek fet ffd ffe fff ffg ffk fft fgb fgd fge fgf fgg fgt fkb fkf fkg fkk fkt ftb ftd fte ftf ftg ftk ftt g-d gbd gbe gbf gbg gbk gbt gdb gdd gde gdf gdk gdt ge- geb ged gee gef geg gek get gfb gfd gfe gff gfk gft ggb ggd ggg ggt gkb gkd gkt gtb gtd gte gtf gtg gtk gtt k-t kbb kbd kbe kbf kbk kdb kde kdf kdg kdk kdt ke- keb ked kee kef keg kek ket kfd kff kfg kgb kgd kgf kkb kke kkk kkt ktb kte ktf ktg ktk ktt tbb tbd tbe tbf tbg tbk tbt tdb tdd tde tdf tdg tdk tdt te- teb ted tee tef teg tek tet tfb tfd tfe tff tfg tfk tft tgb tge tgf tgg tgk tgt tkb tke tkg tkk tkt ttb ttd tte ttf ttg ttk ttt