-al -ic a-a a-c a-i a-t aaa aac aad aaf aag aai aal aar aat ac- aca acc acd acf acg aci acl acr act ad- ada adc add adf adg adi adl adr adt af- afa afc afd aff afg afi afl afr aft ag- aga agc agd agf agg agi agl agr agt ai- aia aic aid aif aig aii ail air ait al- ala alc ald alf alg ali all alr alt ar- ara arc ard arf arg ari arl arr art at- ata atc atd atf atg ati atl atr att c-- caa cac cad caf cag cai cal car cat cca ccc ccd ccf ccg cci ccl ccr cct cda cdc cdd cdf cdg cdi cdl cdr cdt cfa cfc cfd cff cfg cfi cfl cfr cft cga cgc cgd cgg cgi cgl cgr cgt ci- cia cic cid cif cig cii cil cir cit cl- cla clc cld clf clg cli cll clr clt cra crc crd crf crg cri crl crr crt cta ctc ctd ctf ctg cti ctl ctr ctt daa dac dad daf dag dai dal dar dat dca dcc dcd dcf dcg dci dcl dcr dct dda ddc ddd ddf ddg ddi ddl ddr ddt dfa dfc dfd dff dfg dfi dfl dfr dft dga dgc dgd dgf dgg dgi dgl dgr dgt di- dia dic did dif dig dii dil dir dit dl- dla dlc dld dlf dlg dli dll dlr dlt dra drc drd drg dri drl drr drt dta dtc dtd dtf dtg dti dtl dtr dtt faa fac fad faf fag fai fal far fat fca fcc fcd fcf fcg fci fcl fcr fct fda fdc fdd fdf fdg fdi fdl fdr fdt ffa ffc ffd fff ffg ffi ffl ffr fft fga fgc fgd fgf fgg fgi fgl fgr fgt fia fic fid fif fig fii fil fir fit fla flc fld flf flg fli fll flr flt fra frc frd frf frg fri frl frr frt fta ftc ftd ftf ftg fti ftl ftr ftt g-d gaa gac gad gaf gag gai gal gar gat gca gcc gcd gcf gcg gci gcl gcr gct gda gdc gdd gdf gdi gdl gdr gdt gfa gfc gfd gff gfi gfl gfr gft gga ggc ggd ggg ggi ggr ggt gia gic gid gif gig gii gil gir git gla glc gld glf glg gli gll glr glt gra grc grd grf grg gri grl grr grt gta gtc gtd gtf gtg gti gtl gtr gtt i-d i-f ia- iaa iac iad iaf iag iai ial iar iat ica icc icd icf icg ici icl icr ict ida idc idd idf idg idi idl idr idt ifa ifc ifd iff ifg ifi ifl ifr ift iga igc igd igf igg igi igl igr igt iia iic iid iif iii iil iir iit il- ila ilc ild ilf ilg ili ill ilr ilt ir- ira irc ird irf irg iri irl irr irt ita itc itd itf itg iti itl itt la- laa lac lad laf lag lai lal lar lat lca lcc lcd lcf lcg lci lcl lcr lct lda ldc ldd ldf ldg ldi ldl ldr ldt lfa lfc lfd lff lfg lfi lfl lfr lft lga lgc lgd lgf lgg lgi lgl lgr lgt lia lic lid lif lig lii lil lir lit lla llc lld llf llg lli lll llr llt lra lrc lrd lrf lrg lri lrr lrt lta ltc ltd ltf ltg lti ltl ltr ltt ra- raa rac rad raf rag rai ral rar rat rca rcc rcd rcf rcg rci rcl rcr rct rda rdc rdd rdf rdg rdi rdl rdr rdt rfa rfc rfd rff rfg rfi rfl rfr rft rga rgc rgd rgf rgg rgi rgr rgt ria ric rid rif rig rii ril rir rit rla rlc rld rlf rlg rli rll rlr rlt rra rrc rrd rrf rrg rri rrl rrr rrt rta rtc rtd rtf rtg rti rtl rtr rtt taa tac tad taf tag tai tal tar tat tca tcc tcd tcf tcg tci tcl tcr tct tda tdc tdd tdf tdg tdi tdl tdr tdt tfa tfc tfd tff tfg tfi tfl tfr tft tga tgc tgf tgg tgi tgl tgr tgt tia tic tid tif tig tii til tir tit tla tlc tld tlf tlg tli tll tlr tlt tra trc trd trf trg tri trl trr trt tta ttc ttd ttf ttg tti ttl ttr ttt