a-a a-b a-i a-t aaa aab aad aai aan aao aap aar aat ab- aba abb abd abi abn abo abp abr abt ad- ada adb add adi adn ado adp adr adt ai- aia aib aid aii ain aio aip air ait an- ana anb and ani ann ano anp anr ant aoa aob aod aoi aon aoo aop aor aot ap- apa apb apd api apn apo app apr apt ar- ara arb ard ari arn aro arp arr art at- ata atb atd ati atn ato atp atr att b-p baa bab bad bai ban bao bap bar bat bba bbb bbd bbi bbn bbo bbp bbr bbt bda bdb bdd bdi bdo bdp bdr bdt bi- bia bib bid bii bin bio bip bir bit bna bnb bnd bni bnn bno bnp bnr bnt boa bob bod boi bon boo bop bor bot bpa bpb bpd bpi bpn bpo bpp bpr bpt bra brb brd bri brn bro brp brr brt bta btb btd bti btn bto btp btr btt daa dab dad dai dan dao dap dar dat dba dbb dbd dbi dbn dbo dbp dbr dbt dda ddb ddd ddi ddn ddo ddp ddr ddt di- dia dib did dii din dio dip dir dit dna dnb dnd dni dnn dno dnp dnr dnt doa dob dod doi don doo dop dor dot dpa dpb dpd dpi dpn dpo dpp dpr dpt dra drb drd dri drn dro drp drr drt dta dtb dtd dti dtn dto dtp dtr dtt i-d ia- iaa iab iad iai ian iao iap iar iat iba ibb ibd ibi ibn ibo ibp ibr ibt ida idb idd idi idn ido idp idr idt iia iib iid iii iin iio iip iir iit in- ina inb ind ini inn ino inp inr int io- ioa iob iod ioi ion ioo iop ior iot ipa ipb ipd ipi ipn ipo ipp ipr ipt ir- ira irb ird iri irn iro irp irr irt ita itb itd iti itn ito itp itt n-i naa nab nad nai nan nao nap nar nat nba nbb nbd nbi nbn nbo nbp nbr nbt nda ndb ndd ndi ndn ndo ndp ndr ndt nia nib nid nii nin nio nip nir nit nna nnb nni nnn nno nnp nnt no- noa nob nod noi non noo nop nor not npa npb npd npi npn npo npp npr npt nra nrb nrd nri nrn nro nrp nrr nrt nta ntb ntd nti ntn nto ntp ntr ntt o-i oaa oab oad oai oan oao oap oar oat ob- oba obb obd obi obn obo obp obr obt oda odb odd odi odn odo odp odr odt oia oib oid oii oin oio oip oir oit on- ona onb ond oni onn ono onp onr ont oo- ooa oob ood ooi oon ooo oop oor oot op- opa opb opd opi opn opo opp opr opt or- ora orb ord ori orn oro orp orr ort ot- ota otb otd oti otn oto otp otr ott p-p paa pab pad pai pan pao pap par pat pba pbb pbd pbi pbn pbo pbp pbr pbt pda pdb pdd pdi pdn pdo pdp pdr pdt pia pib pid pii pin pio pip pir pit pn- pna pnb pnd pni pnn pno pnp pnr pnt poa pob pod poi pon poo pop por pot ppa ppb ppd ppi ppn ppo ppp ppr ppt pra prb prd pri prn pro prp prr prt pt- pta ptb ptd pti ptn pto ptp ptr ptt ra- raa rab rad rai ran rao rap rar rat rba rbb rbd rbi rbn rbo rbp rbr rbt rda rdb rdd rdi rdn rdo rdp rdr rdt ria rib rid rii rin rio rip rir rit rna rnb rnd rni rnn rno rnp rnr rnt roa rob rod roi ron roo rop ror rot rpa rpb rpd rpi rpn rpo rpp rpr rpt rra rrb rrd rri rrn rrp rrr rrt rta rtb rtd rti rtn rto rtp rtr rtt taa tab tad tai tan tao tap tar tat tba tbb tbd tbi tbn tbo tbp tbr tbt tda tdb tdd tdi tdn tdo tdp tdr tdt tia tib tid tii tin tio tip tir tit tna tnb tnd tni tnn tno tnp tnr tnt to- toa tob tod toi ton too top tor tot tpa tpb tpd tpi tpn tpo tpp tpr tpt tra trb trd tri trn tro trp trr trt tta ttb ttd tti ttn tto ttp ttr ttt