-er a-a a-b a-i a-t aaa aab aad aae aag aai aan aap aar aat ab- aba abb abd abe abg abi abn abp abr abt ad- ada adb add ade adg adi adn adp adr adt aea aeb aed aee aeg aei aen aep aer aet ag- aga agb agd age agg agi agn agp agr agt ai- aia aib aid aie aig aii ain aip air ait an- ana anb and ane ang ani ann anp anr ant ap- apa apb apd ape apg api apn app apr apt ar- ara arb ard are arg ari arn arp arr art at- ata atb atd ate atg ati atn atp atr att b-p baa bab bad bae bag bai ban bap bar bat bba bbb bbd bbe bbg bbi bbn bbp bbr bbt bda bdb bdd bde bdg bdi bdp bdr bdt be- bea beb bed bee beg bei ben bep ber bet bga bgb bgd bge bgg bgi bgn bgp bgr bgt bi- bia bib bid bie big bii bin bip bir bit bna bnb bnd bne bng bni bnn bnp bnr bnt bpa bpb bpd bpe bpg bpi bpn bpp bpr bpt bra brb brd bre brg bri brn brp brr brt bta btb btd bte btg bti btn btp btr btt daa dab dad dae dag dai dan dap dar dat dba dbb dbd dbe dbg dbi dbn dbp dbr dbt dda ddb ddd dde ddg ddi ddn ddp ddr ddt de- dea deb ded dee deg dei den dep der det dga dgd dge dgg dgi dgn dgp dgr dgt di- dia dib did die dig dii din dip dir dit dna dnb dnd dne dng dni dnn dnp dnr dnt dpa dpb dpd dpe dpg dpi dpn dpp dpr dpt dra drb drd dre drg dri drn drp drr drt dta dtb dtd dte dtg dti dtn dtp dtr dtt eaa eab ead eae eag eai ean eap ear eat eba ebb ebd ebe ebg ebi ebn ebp ebr ebt ed- eda edb edd ede edg edi edn edp edr edt eea eeb eed eee eeg een eep eer eet ega egb egd ege egg egi egn egp egr egt eia eib eid eie eig eii ein eip eir eit en- ena enb end ene eng eni enn enp enr ent ep- epa epb epd epe epg epi epn epp epr ept era erb erd ere erg eri ern erp err ert eta etb etd ete etg eti etn etp etr ett g-d g-p gaa gab gad gae gag gai gan gap gar gat gba gbd gbe gbg gbi gbn gbp gbr gbt gda gdb gdd gde gdi gdn gdp gdr gdt ge- gea geb ged gee geg gei gen gep ger get gga ggb ggd ggg ggi ggn ggp ggr ggt gia gib gid gie gig gii gin gip gir git gna gnb gnd gne gni gnn gnp gnr gnt gpa gpb gpd gpe gpg gpi gpn gpp gpr gpt gra grb grd gre grg gri grn grp grr grt gta gtb gtd gte gtg gti gtn gtp gtr gtt i-d ia- iaa iab iad iae iag iai ian iap iar iat iba ibb ibd ibe ibg ibi ibn ibp ibr ibt ida idb idd ide idg idi idn idp idr idt ie- iea ied iee ieg iei ien iep ier iet iga igb igd ige igg igi ign igp igr igt iia iib iid iie iii iin iip iir iit in- ina inb ind ine ing ini inn inp inr int ipa ipb ipd ipe ipg ipi ipn ipp ipr ipt ir- ira irb ird ire irg iri irn irp irr irt ita itb itd ite itg iti itn itp itt n-i naa nab nad nae nag nai nan nap nar nat nba nbb nbd nbe nbg nbi nbn nbp nbr nbt nda ndb ndd nde ndg ndi ndn ndp ndr ndt ne- nea neb ned nee neg nei nen nep ner net nga ngb ngd nge ngg ngi ngn ngp ngt nia nib nid nie nig nii nin nip nir nit nna nnb nne nng nni nnn nnp nnt npa npb npd npe npg npi npn npp npr npt nra nrb nrd nre nrg nri nrn nrp nrr nrt nta ntb ntd nte ntg nti ntn ntp ntr ntt p-p paa pab pad pae pag pai pan pap par pat pba pbb pbd pbe pbg pbi pbn pbp pbr pbt pda pdb pdd pde pdg pdi pdn pdp pdr pdt pea peb ped pee peg pei pen pep per pet pga pgb pgd pge pgg pgi pgn pgp pgr pgt pia pib pid pie pig pii pin pip pir pit pn- pna pnb pnd pne png pni pnn pnp pnr pnt ppa ppb ppd ppe ppg ppi ppn ppp ppr ppt pra prb prd pre prg pri prn prp prr prt pt- pta ptb ptd pte ptg pti ptn ptp ptr ptt ra- raa rab rad rae rag rai ran rap rar rat rba rbb rbd rbe rbg rbi rbn rbp rbr rbt rda rdb rdd rde rdg rdi rdn rdp rdr rdt re- rea reb red ree reg rei ren rep rer ret rga rgb rgd rge rgg rgi rgn rgp rgr rgt ria rib rid rie rig rii rin rip rir rit rna rnb rnd rng rni rnn rnp rnr rnt rpa rpb rpd rpe rpg rpi rpn rpp rpr rpt rra rrb rrd rrg rri rrn rrp rrr rrt rta rtb rtd rte rtg rti rtn rtp rtr rtt taa tab tad tae tag tai tan tap tar tat tba tbb tbd tbe tbg tbi tbn tbp tbr tbt tda tdb tdd tde tdg tdi tdn tdp tdr tdt te- tea teb ted tee teg tei ten tep ter tet tga tgb tge tgg tgi tgn tgp tgr tgt tia tib tid tie tig tii tin tip tir tit tna tnb tnd tne tng tni tnn tnp tnr tnt tpa tpb tpd tpe tpg tpi tpn tpp tpr