b-p bbb bbd bbe bbi bbn bbo bbp bbx bdb bdd bde bdi bdo bdp bdx be- beb bed bee bei ben beo bep bex bi- bib bid bie bii bin bio bip bix bnb bnd bne bni bnn bno bnp bnx bob bod boe boi bon boo bop box bpb bpd bpe bpi bpn bpo bpp bpx bxb bxd bxi bxn bxo bxx dbb dbd dbe dbi dbn dbo dbp dbx ddb ddd dde ddi ddn ddo ddp ddx de- deb ded dee dei den deo dep dex di- dib did die dii din dio dip dix dnb dnd dne dni dnn dno dnp dob dod doe doi don doo dop dox dpb dpd dpe dpi dpn dpo dpp dxd dxi dxn dxo dxp dxx ebb ebd ebe ebi ebn ebo ebp ebx ed- edb edd ede edi edn edo edp edx eeb eed eee een eeo eep eex eib eid eie eii ein eio eip eix en- enb end ene eni enn eno enp eo- eob eod eoe eoi eon eoo eop ep- epb epd epe epi epn epo epp epx ex- exd exe exi exo exp exx i-d ibb ibd ibe ibi ibn ibo ibp ibx idb idd ide idi idn ido idp idx ie- ied iee iei ien iep iex iib iid iie iii iin iio iip iix in- inb ind ine ini inn ino inp inx io- iob iod ioe ioi ion ioo iop ipb ipd ipe ipi ipn ipo ipp ipx ixe ixi ixn n-i nbb nbd nbe nbi nbn nbo nbp nbx ndb ndd nde ndi ndn ndo ndp ne- neb ned nee nei nen neo nep nex nib nid nie nii nin nio nip nix nnb nne nni nnn nno nnp no- nob nod noe noi non noo nop nox npb npd npe npi npn npo npp nxd o-i ob- obb obd obe obi obn obo obp obx odb odd ode odi odn odo odp oeb oed oee oei oen oeo oep oex oib oid oie oii oin oio oip on- onb ond one oni onn ono onp onx oo- oob ood ooi oon ooo oop oox op- opb opd ope opi opn opo opp opx ox- oxb oxi oxn oxo oxx p-p pbb pbd pbe pbi pbn pbo pbp pbx pdb pdd pde pdi pdn pdo pdp pdx peb ped pee pei pen peo pep pex pib pid pie pii pin pio pip pix pn- pnb pnd pne pni pnn pno pnp pnx pob pod poe poi pon poo pop pox ppb ppd ppe ppi ppn ppo ppp ppx pxe xbe xbx xdb xde xdi xed xee xen xep xex xie xii xin xio xix xno xod xoi xon xoo xop xox xpb xpd xpe xpn xpo xpp xxi xxo xxp xxx