b-p bbb bbd bbi bbn bbo bbp bbr bby bdb bdd bdi bdo bdp bdr bdy bdz bi- bib bid bii bin bio bip bir biy biz bnb bnd bni bnn bno bnp bnr bnz bob bod boi bon boo bop bor boy boz bpb bpd bpi bpn bpo bpp bpr bpy brb brd bri brn bro brp brr bry brz by- byd byi byn byo byp byr byz bzd bzn bzo bzp bzr bzz dbb dbd dbi dbn dbo dbp dbr dby dbz ddb ddd ddi ddn ddo ddp ddr ddy ddz di- dib did dii din dio dip dir diy diz dnb dnd dni dnn dno dnp dnr dny dnz dob dod doi don doo dop dor doy doz dpb dpd dpi dpn dpo dpp dpr dpz drb drd dri drn dro drp drr dry drz dy- dyb dyd dyn dyo dyp dyr dyy dzb dzd dzi dzo dzp dzr i-d ibb ibd ibi ibn ibo ibp ibr iby ibz idb idd idi idn ido idp idr idy iib iid iii iin iio iip iir in- inb ind ini inn ino inp inr iny io- iob iod ioi ion ioo iop ior ipb ipd ipi ipn ipo ipp ipr ipy ir- irb ird iri irn iro irp irr iry iyo iyr iyy izi izo izy izz n-i nbb nbd nbi nbn nbo nbp nbr ndb ndd ndi ndn ndo ndp ndr ndy nib nid nii nin nio nip nir niz nnb nni nnn nno nnp nnz no- nob nod noi non noo nop nor noy noz npb npd npi npn npo npp npr npz nrb nrd nri nrn nro nrp nrr nry nrz nyd nyn nyo nyp nyy nzb nzd nzi nzo nzp nzz o-i ob- obb obd obi obn obo obp obr oby odb odd odi odn odo odp odr oib oid oii oin oio oip oir oiz on- onb ond oni onn ono onp onr ony oo- oob ood ooi oon ooo oop oor op- opb opd opi opn opo opp opr opy or- orb ord ori orn oro orp orr ory orz oyd oyi oyo ozo ozz p-p pbb pbd pbi pbn pbo pbp pbr pby pbz pdb pdd pdi pdn pdo pdp pdr pdz pib pid pii pin pio pip pir piz pn- pnb pnd pni pnn pno pnp pnr pny pob pod poi pon poo pop por poy poz ppb ppd ppi ppn ppo ppp ppr ppz prb prd pri prn pro prp prr pry prz py- pyb pyd pyn pyo pyr pzp rbb rbd rbi rbn rbo rbp rbr rdb rdd rdi rdn rdo rdp rdr rdy rib rid rii rin rio rip rir riy riz rnb rnd rni rnn rno rnp rnr rny rnz rob rod roi ron roo rop ror roy roz rpb rpd rpi rpn rpo rpp rpr rpz rrb rrd rri rrn rrp rrr ry- ryd ryn ryo ryr ryy ryz rzb rzo rzy ybi ybp ybr yby ybz ydn ydo ydy yid yii yin yio yip yir yiz ynd ynn ynp yny yob yod yoi yon yoo yop yor yoy ypd ypo yrn yro yrp yyb yyy yyz yzb yzr yzy zbb zbr zby zib zid zin zio zip zir ziz znd znn zno znp zo- zob zod zoi zon zoo zor zpi zpo zpp zpr zro zrp zzr zzy zzz