-er a-a a-b a-i a-t aaa aab aad aae aaf aag aai aan aar aat ab- aba abb abd abe abf abg abi abn abr abt ad- ada adb add ade adf adg adi adn adr adt aea aeb aed aee aef aeg aei aen aer aet af- afa afb afd afe aff afg afi afn afr aft ag- aga agb agd age agf agg agi agn agr agt ai- aia aib aid aie aif aig aii ain air ait an- ana anb and ane anf ang ani ann anr ant ar- ara arb ard are arf arg ari arn arr art at- ata atb atd ate atf atg ati atn atr att baa bab bad bae baf bag bai ban bar bat bba bbb bbd bbe bbf bbg bbi bbn bbr bbt bda bdb bdd bde bdf bdg bdi bdr bdt be- bea beb bed bee bef beg bei ben ber bet bfa bfb bfd bfe bff bfg bfi bfn bfr bft bga bgb bgd bge bgf bgg bgi bgn bgr bgt bi- bia bib bid bie bif big bii bin bir bit bna bnb bnd bne bnf bng bni bnn bnr bnt bra brb brd bre brf brg bri brn brr brt bta btb btd bte btf btg bti btn btr btt daa dab dad dae daf dag dai dan dar dat dba dbb dbd dbe dbf dbg dbi dbn dbr dbt dda ddb ddd dde ddf ddg ddi ddn ddr ddt de- dea deb ded dee def deg dei den der det dfa dfb dfd dfe dff dfg dfi dfn dfr dft dga dgd dge dgf dgg dgi dgn dgr dgt di- dia dib did die dif dig dii din dir dit dna dnb dnd dne dnf dng dni dnn dnr dnt dra drb drd dre drg dri drn drr drt dta dtb dtd dte dtf dtg dti dtn dtr dtt eaa eab ead eae eaf eag eai ean ear eat eba ebb ebd ebe ebf ebg ebi ebn ebr ebt ed- eda edb edd ede edf edg edi edn edr edt eea eeb eed eee eef eeg een eer eet ef- efa efb efd efe eff efg efi efr eft ega egb egd ege egf egg egi egn egr egt eia eib eid eie eif eig eii ein eir eit en- ena enb end ene enf eng eni enn enr ent era erb erd ere erf erg eri ern err ert eta etb etd ete etf etg eti etn etr ett faa fab fad fae faf fag fai fan far fat fba fbb fbd fbe fbf fbg fbi fbn fbr fbt fda fdb fdd fde fdf fdg fdi fdn fdr fdt fea feb fed fee fef feg fei fen fer fet ffa ffd ffe fff ffg ffi ffn ffr fft fga fgb fgd fge fgf fgg fgi fgn fgr fgt fia fib fid fie fif fig fii fin fir fit fna fnb fnd fne fnf fng fni fnn fnr fnt fra frb frd fre frf frg fri frn frr frt fta ftb ftd fte ftf ftg fti ftn ftr ftt g-d gaa gab gad gae gaf gag gai gan gar gat gba gbd gbe gbf gbg gbi gbn gbr gbt gda gdb gdd gde gdf gdi gdn gdr gdt ge- gea geb ged gee gef geg gei gen ger get gfa gfb gfd gfe gff gfi gfr gft gga ggb ggd ggg ggi ggn ggr ggt gia gib gid gie gif gig gii gin gir git gna gnb gnd gne gnf gni gnn gnr gnt gra grb grd gre grf grg gri grn grr grt gta gtb gtd gte gtf gtg gti gtn gtr gtt i-d i-f ia- iaa iab iad iae iaf iag iai ian iar iat iba ibb ibd ibe ibf ibg ibi ibn ibr ibt ida idb idd ide idf idg idi idn idr idt ie- iea ied iee ief ieg iei ien ier iet ifa ifb ifd ife iff ifg ifi ifn ifr ift iga igb igd ige igf igg igi ign igr igt iia iib iid iie iif iii iin iir iit in- ina inb ind ine inf ing ini inn inr int ir- ira irb ird ire irf irg iri irn irr irt ita itb itd ite itf itg iti itn itt n-i naa nab nad nae naf nag nai nan nar nat nba nbb nbd nbe nbf nbg nbi nbn nbr nbt nda ndb ndd nde ndf ndg ndi ndn ndr ndt ne- nea neb ned nee nef neg nei nen ner net nfa nfb nfd nfe nff nfi nfn nfr nft nga ngb ngd nge ngf ngg ngi ngn ngt nia nib nid nie nif nig nii nin nir nit nna nnb nne nnf nng nni nnn nnt nra nrb nrd nre nrf nrg nri nrn nrr nrt nta ntb ntd nte ntf ntg nti ntn ntr ntt ra- raa rab rad rae raf rag rai ran rar rat rba rbb rbd rbe rbf rbg rbi rbn rbr rbt rda rdb rdd rde rdf rdg rdi rdn rdr rdt re- rea reb red ree ref reg rei ren rer ret rfa rfb rfd rfe rff rfg rfi rfn rfr rft rga rgb rgd rge rgf rgg rgi rgn rgr rgt ria rib rid rie rif rig rii rin rir rit rna rnb rnd rng rni rnn rnr rnt rra rrb rrd rrf rrg rri rrn rrr rrt rta rtb rtd rte rtf rtg rti rtn rtr rtt taa tab tad tae taf tag tai tan tar tat tba tbb tbd tbe tbf tbg tbi tbn tbr tbt tda tdb tdd tde tdf tdg tdi tdn tdr tdt te- tea teb ted tee tef teg tei ten ter tet tfa tfb tfd tfe tff tfg tfi tfn tfr tft tga tgb tge tgf tgg tgi tgn tgr tgt tia tib tid tie tif tig tii tin tir tit tna tnb tnd tne tnf tng tni tnn tnr tnt tra trb trd tre trf trg tri trn trr trt tta