-al -ic -ol a-a a-b a-c a-i a-t aaa aab aac aaf aai aal aan aao aat ab- aba abb abc abf abi abl abn abo abt ac- aca acb acc acf aci acl acn aco act af- afa afb afc aff afi afl afn afo aft ai- aia aib aic aif aii ail ain aio ait al- ala alb alc alf ali all aln alo alt an- ana anb anc anf ani anl ann ano ant aoa aob aoc aof aoi aol aon aoo aot at- ata atb atc atf ati atl atn ato att baa bab bac baf bai bal ban bao bat bba bbb bbc bbf bbi bbl bbn bbo bbt bca bcb bcc bcf bci bcl bcn bco bct bfa bfb bfc bff bfi bfl bfn bfo bft bi- bia bib bic bif bii bil bin bio bit bla blb blc blf bli bll bln blo blt bna bnb bnc bnf bni bnl bnn bno bnt boa bob boc bof boi bol bon boo bot bta btb btc btf bti btl btn bto btt c-- caa cab cac caf cai cal can cao cat cba cbb cbc cbf cbi cbl cbn cbo cbt cca ccb ccc ccf cci ccl ccn cco cct cfa cfb cfc cff cfi cfl cfn cfo cft ci- cia cib cic cif cii cil cin cio cit cl- cla clb clc clf cli cll cln clo clt cn- cna cnb cnc cnf cni cnl cnn cno cnt co- coa cob coc cof coi col con coo cot cta ctb ctc ctf cti ctl ctn cto ctt faa fab fac faf fai fal fan fao fat fba fbb fbc fbf fbi fbl fbn fbo fbt fca fcb fcc fcf fci fcl fcn fco fct ffa ffc fff ffi ffl ffn ffo fft fia fib fic fif fii fil fin fit fla flb flc flf fli fll fln flo flt fna fnb fnc fnf fni fnl fnn fnt foa fob foc fof foi fol fon foo fot fta ftb ftc ftf fti ftl ftn fto ftt i-f ia- iaa iab iac iaf iai ial ian iao iat iba ibb ibc ibf ibi ibl ibn ibo ibt ica icb icc icf ici icl icn ico ict ifa ifb ifc iff ifi ifl ifn ifo ift iia iib iic iif iii iil iin iio iit il- ila ilb ilc ilf ili ill iln ilo ilt in- ina inb inc inf ini inl inn ino int io- ioa iob ioc iof ioi iol ion ioo iot ita itb itc itf iti itl itn ito itt la- laa lab lac laf lai lal lan lao lat lba lbb lbc lbf lbi lbl lbo lbt lca lcb lcc lcf lci lcl lcn lco lct lfa lfb lfc lff lfi lfl lfn lfo lft lia lib lic lif lii lil lin lio lit lla llb llc llf lli lll lln llo llt lna lnb lnc lni lnl lnn lno lnt loa lob loc lof loi lol lon loo lot lta ltb ltc ltf lti ltl lto ltt n-i naa nab nac naf nai nal nan nao nat nba nbb nbc nbf nbi nbl nbn nbo nbt nca ncb ncc ncf nci ncl ncn nco nct nfa nfb nfc nff nfi nfl nfn nfo nft nia nib nic nif nii nil nin nio nit nla nlb nlc nlf nli nll nln nlo nlt nna nnb nnc nnf nni nnl nnn nno nnt no- noa nob noc nof noi nol non noo not nta ntb ntc ntf nti ntn nto ntt o-i oaa oab oac oaf oai oal oan oao oat ob- oba obb obc obf obi obl obn obo obt oc- oca ocb occ ocf oci ocl ocn oco oct of- ofa ofb ofc off ofi ofl ofn ofo oft oia oib oic oif oii oil oin oio oit ola olb olc olf oli oll oln olo olt on- ona onb onc onf oni onl onn ono ont oo- ooa oob ooc oof ooi ool oon ooo oot ot- ota otb otc otf oti otl otn oto ott taa tab tac taf tai tal tan tao tat tba tbb tbc tbf tbi tbl tbn tbo tbt tca tcb tcc tcf tci tcl tcn tco tct tfa tfb tfc tff tfi tfl tfn tfo tft tia tib tic tif tii til tin tio tit tla tlc tlf tli tll tln tlo tlt tna tnb tnc tnf tni tnl tnn tno tnt to- toa tob toc tof toi tol ton too tot tta ttb ttc ttf tti ttl ttn tto ttt