bbb bbd bbe bbn bbo bbt bdb bdd bde bdo bdt bdz be- beb bed bee ben beo bet bez bnb bnd bne bnn bno bnt bnz bob bod boe bon boo bot boz btb btd bte btn bto btt btz bzd bze bzn bzo bzz dbb dbd dbe dbn dbo dbt dbz ddb ddd dde ddn ddo ddt ddz de- deb ded dee den deo det dez dnb dnd dne dnn dno dnt dnz dob dod doe don doo dot doz dtb dtd dte dtn dto dtt dtz dzb dzd dze dzo ebb ebd ebe ebn ebo ebt ed- edb edd ede edn edo edt eeb eed eee een eeo eet en- enb end ene enn eno ent enz eo- eob eod eoe eon eoo eot etb etd ete etn eto ett etz eze ezo ezz nbb nbd nbe nbn nbo nbt ndb ndd nde ndn ndo ndt ne- neb ned nee nen neo net nez nnb nne nnn nno nnt nnz no- nob nod noe non noo not noz ntb ntd nte ntn nto ntt ntz nzb nzd nze nzo nzz ob- obb obd obe obn obo obt odb odd ode odn odo odt oeb oed oee oen oeo oet on- onb ond one onn ono ont oo- oob ood oon ooo oot ot- otb otd ote otn oto ott otz oze ozo ozt ozz tbb tbd tbe tbn tbo tbt tbz tdb tdd tde tdn tdo tdt te- teb ted tee ten teo tet tez tnb tnd tne tnn tno tnt tnz to- tob tod toe ton too tot toz ttb ttd tte ttn tto ttt tzd tze zbb zbt zdt zeb zed zee zen zeo zet zez znd zne znn zno zo- zob zod zoe zon zoo zot zte zzt zzz