bbb bbe bbn bbo be- beb bee ben beo bez bjj bjn bnb bne bnj bnn bno bnz bob boe boj bon boo boz bze bzn bzo bzz ebb ebe ebj ebn ebo eeb eee een eeo ejo en- enb ene enn eno enz eo- eob eoe eon eoo eze ezo ezz j-z jbj jbo jbz jeb jee jej jen jeo jez jjb jjj jne jnj jnn jno job joe joj jon joo nbb nbe nbn nbo ne- neb nee nej nen neo nez nje njn nnb nne nnn nno nnz no- nob noe noj non noo noz nzb nze nzo nzz ob- obb obe obj obn obo oeb oee oen oeo ojb oje ojo on- onb one onj onn ono oo- oob oon ooo oze ozo ozz zbb zeb zee zen zeo zez zje zne znn zno zo- zob zoe zon zoo zzz