-er a-a a-b a-i aaa aab aad aae aag aai aan aao aap aar ab- aba abb abd abe abg abi abn abo abp abr ad- ada adb add ade adg adi adn ado adp adr aea aeb aed aee aeg aei aen aeo aep aer ag- aga agb agd age agg agi agn ago agp agr ai- aia aib aid aie aig aii ain aio aip air an- ana anb and ane ang ani ann ano anp anr aoa aob aod aoe aog aoi aon aoo aop aor ap- apa apb apd ape apg api apn apo app apr ar- ara arb ard are arg ari arn aro arp arr b-p baa bab bad bae bag bai ban bao bap bar bba bbb bbd bbe bbg bbi bbn bbo bbp bbr bda bdb bdd bde bdg bdi bdo bdp bdr be- bea beb bed bee beg bei ben beo bep ber bga bgb bgd bge bgg bgi bgn bgo bgp bgr bi- bia bib bid bie big bii bin bio bip bir bna bnb bnd bne bng bni bnn bno bnp bnr boa bob bod boe bog boi bon boo bop bor bpa bpb bpd bpe bpg bpi bpn bpo bpp bpr bra brb brd bre brg bri brn bro brp brr daa dab dad dae dag dai dan dao dap dar dba dbb dbd dbe dbg dbi dbn dbo dbp dbr dda ddb ddd dde ddg ddi ddn ddo ddp ddr de- dea deb ded dee deg dei den deo dep der dga dgd dge dgg dgi dgn dgp dgr di- dia dib did die dig dii din dio dip dir dna dnb dnd dne dng dni dnn dno dnp dnr doa dob dod doe dog doi don doo dop dor dpa dpb dpd dpe dpg dpi dpn dpo dpp dpr dra drb drd dre drg dri drn dro drp drr eaa eab ead eae eag eai ean eao eap ear eba ebb ebd ebe ebg ebi ebn ebo ebp ebr ed- eda edb edd ede edg edi edn edo edp edr eea eeb eed eee eeg een eeo eep eer ega egb egd ege egg egi egn ego egp egr eia eib eid eie eig eii ein eio eip eir en- ena enb end ene eng eni enn eno enp enr eo- eoa eob eod eoe eog eoi eon eoo eop eor ep- epa epb epd epe epg epi epn epo epp epr era erb erd ere erg eri ern ero erp err g-d g-p gaa gab gad gae gag gai gan gao gap gar gba gbd gbe gbg gbi gbn gbo gbp gbr gda gdb gdd gde gdi gdn gdo gdp gdr ge- gea geb ged gee geg gei gen geo gep ger gga ggb ggd ggg ggi ggn ggo ggp ggr gia gib gid gie gig gii gin gio gip gir gna gnb gnd gne gni gnn gno gnp gnr goa gob god goe gog goi gon goo gop gor gpa gpb gpd gpe gpg gpi gpn gpo gpp gpr gra grb grd gre grg gri grn gro grp grr i-d ia- iaa iab iad iae iag iai ian iao iap iar iba ibb ibd ibe ibg ibi ibn ibo ibp ibr ida idb idd ide idg idi idn ido idp idr ie- iea ied iee ieg iei ien iep ier iga igb igd ige igg igi ign igo igp igr iia iib iid iie iii iin iio iip iir in- ina inb ind ine ing ini inn ino inp inr io- ioa iob iod ioe iog ioi ion ioo iop ior ipa ipb ipd ipe ipg ipi ipn ipo ipp ipr ir- ira irb ird ire irg iri irn iro irp irr n-i naa nab nad nae nag nai nan nao nap nar nba nbb nbd nbe nbg nbi nbn nbo nbp nbr nda ndb ndd nde ndg ndi ndn ndo ndp ndr ne- nea neb ned nee neg nei nen neo nep ner nga ngb ngd nge ngg ngi ngn ngo ngp nia nib nid nie nig nii nin nio nip nir nna nnb nne nng nni nnn nno nnp no- noa nob nod noe nog noi non noo nop nor npa npb npd npe npg npi npn npo npp npr nra nrb nrd nre nrg nri nrn nro nrp nrr o-i oaa oab oad oae oag oai oan oao oap oar ob- oba obb obd obe obg obi obn obo obp obr oda odb odd ode odg odi odn odo odp odr oea oeb oed oee oeg oei oen oeo oep oer oga ogd oge ogg ogi ogn ogo ogp oia oib oid oie oii oin oio oip oir on- ona onb ond one ong oni onn ono onp onr oo- ooa oob ood oog ooi oon ooo oop oor op- opa opb opd ope opg opi opn opo opp opr or- ora orb ord ore org ori orn oro orp orr p-p paa pab pad pae pag pai pan pao pap par pba pbb pbd pbe pbg pbi pbn pbo pbp pbr pda pdb pdd pde pdg pdi pdn pdo pdp pdr pea peb ped pee peg pei pen peo pep per pga pgb pgd pge pgg pgi pgn pgo pgp pgr pia pib pid pie pig pii pin pio pip pir pn- pna pnb pnd pne png pni pnn pno pnp pnr poa pob pod poe pog poi pon poo pop por ppa ppb ppd ppe ppg ppi ppn ppo ppp ppr pra prb prd pre prg pri prn pro prp prr ra- raa rab rad rae rag rai ran rao rap rar rba rbb rbd rbe rbg rbi rbn rbo rbp rbr rda rdb rdd rde rdg rdi rdn rdo rdp rdr re- rea reb red ree reg rei ren reo rep rer rga rgb rgd rge rgg rgi rgn rgo rgp rgr ria rib rid rie rig rii rin rio rip rir rna rnb rnd rng rni rnn rno rnp rnr roa rob rod roe rog roi ron