-al -ic -ol a-a a-b a-c a-i a-t aaa aab aac aae aai aal aao aat ab- aba abb abc abe abi abl abo abt ac- aca acb acc ace aci acl aco act aea aeb aec aee aei ael aeo aet ai- aia aib aic aie aii ail aio ait al- ala alb alc ale ali all alo alt aoa aob aoc aoe aoi aol aoo aot at- ata atb atc ate ati atl ato att baa bab bac bae bai bal bao bat bba bbb bbc bbe bbi bbl bbo bbt bca bcb bcc bce bci bcl bco bct be- bea beb bec bee bei bel beo bet bi- bia bib bic bie bii bil bio bit bla blb blc ble bli bll blo blt boa bob boc boe boi bol boo bot bta btb btc bte bti btl bto btt c-- caa cab cac cae cai cal cao cat cba cbb cbc cbe cbi cbl cbo cbt cca ccb ccc cce cci ccl cco cct ce- cea ceb cec cee cei cel ceo cet ci- cia cib cic cie cii cil cio cit cl- cla clb clc cle cli cll clo clt co- coa cob coc coe coi col coo cot cta ctb ctc cte cti ctl cto ctt eaa eab eac eae eai eal eao eat eba ebb ebc ebe ebi ebl ebo ebt ec- eca ecb ecc ece eci ecl eco ect eea eeb eec eee eel eeo eet eia eib eic eie eii eil eio eit ela elb elc ele eli ell elo elt eo- eoa eob eoc eoe eoi eol eoo eot eta etb etc ete eti etl eto ett ia- iaa iab iac iae iai ial iao iat iba ibb ibc ibe ibi ibl ibo ibt ica icb icc ice ici icl ico ict ie- iea iec iee iei iel iet iia iib iic iie iii iil iio iit il- ila ilb ilc ile ili ill ilo ilt io- ioa iob ioc ioe ioi iol ioo iot ita itb itc ite iti itl ito itt la- laa lab lac lae lai lal lao lat lba lbb lbc lbe lbi lbl lbo lbt lca lcb lcc lce lci lcl lco lct lea leb lec lee lei lel leo let lia lib lic lie lii lil lio lit lla llb llc lle lli lll llo llt loa lob loc loe loi lol loo lot lta ltb ltc lte lti ltl lto ltt o-i oaa oab oac oae oai oal oao oat ob- oba obb obc obe obi obl obo obt oc- oca ocb occ oci ocl oco oct oea oeb oec oee oei oel oeo oet oia oib oic oie oii oil oio oit ola olb olc ole oli oll olo olt oo- ooa oob ooc ooi ool ooo oot ot- ota otb otc ote oti otl oto ott taa tab tac tae tai tal tao tat tba tbb tbc tbe tbi tbl tbo tbt tca tcb tcc tce tci tcl tco tct te- tea teb tec tee tei tel teo tet tia tib tic tie tii til tio tit tla tlc tle tli tll tlo tlt to- toa tob toc toe toi tol too tot tta ttb ttc tte tti ttl tto ttt