-al -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aal aat ab- aba abb abc abe abf abi abl abt ac- aca acb acc ace acf aci acl act aea aeb aec aee aef aei ael aet af- afa afb afc afe aff afi afl aft ai- aia aib aic aie aif aii ail ait al- ala alb alc ale alf ali all alt at- ata atb atc ate atf ati atl att baa bab bac bae baf bai bal bat bba bbb bbc bbe bbf bbi bbl bbt bca bcb bcc bce bcf bci bcl bct be- bea beb bec bee bef bei bel bet bfa bfb bfc bfe bff bfi bfl bft bi- bia bib bic bie bif bii bil bit bla blb blc ble blf bli bll blt bta btb btc bte btf bti btl btt c-- caa cab cac cae caf cai cal cat cba cbb cbc cbe cbf cbi cbl cbt cca ccb ccc cce ccf cci ccl cct ce- cea ceb cec cee cef cei cel cet cfa cfb cfc cfe cff cfi cfl cft ci- cia cib cic cie cif cii cil cit cl- cla clb clc cle clf cli cll clt cta ctb ctc cte ctf cti ctl ctt eaa eab eac eae eaf eai eal eat eba ebb ebc ebe ebf ebi ebl ebt ec- eca ecb ecc ece ecf eci ecl ect eea eeb eec eee eef eel eet ef- efa efb efc efe eff efi efl eft eia eib eic eie eif eii eil eit ela elb elc ele elf eli ell elt eta etb etc ete etf eti etl ett faa fab fac fae faf fai fal fat fba fbb fbc fbe fbf fbi fbl fbt fca fcb fcc fce fcf fci fcl fct fea feb fec fee fef fei fel fet ffa ffc ffe fff ffi ffl fft fia fib fic fie fif fii fil fit fla flb flc fle flf fli fll flt fta ftb ftc fte ftf fti ftl ftt i-f ia- iaa iab iac iae iaf iai ial iat iba ibb ibc ibe ibf ibi ibl ibt ica icb icc ice icf ici icl ict ie- iea iec iee ief iei iel iet ifa ifb ifc ife iff ifi ifl ift iia iib iic iie iif iii iil iit il- ila ilb ilc ile ilf ili ill ilt ita itb itc ite itf iti itl itt la- laa lab lac lae laf lai lal lat lba lbb lbc lbe lbf lbi lbl lbt lca lcb lcc lce lcf lci lcl lct lea leb lec lee lef lei lel let lfa lfb lfc lfe lff lfi lfl lft lia lib lic lie lif lii lil lit lla llb llc lle llf lli lll llt lta ltb ltc lte ltf lti ltl ltt taa tab tac tae taf tai tal tat tba tbb tbc tbe tbf tbi tbl tbt tca tcb tcc tce tcf tci tcl tct te- tea teb tec tee tef tei tel tet tfa tfb tfc tfe tff tfi tfl tft tia tib tic tie tif tii til tit tla tlc tle tlf tli tll tlt tta ttb ttc tte ttf tti ttl ttt