-al -ol a-a a-b a-c a-t aaa aab aac aad aae aal aao aat aau ab- aba abb abc abd abe abl abo abt abu ac- aca acb acc acd ace acl aco act acu ad- ada adb adc add ade adl ado adt adu aea aeb aec aed aee ael aeo aet aeu al- ala alb alc ald ale all alo alt alu aoa aob aoc aod aoe aol aoo aot aou at- ata atb atc atd ate atl ato att atu au- aua aub auc aud aue aul auo aut b-u baa bab bac bad bae bal bao bat bau bba bbb bbc bbd bbe bbl bbo bbt bbu bca bcb bcc bcd bce bcl bco bct bcu bda bdb bdc bdd bde bdl bdo bdt bdu be- bea beb bec bed bee bel beo bet beu bla blb blc bld ble bll blo blt blu boa bob boc bod boe bol boo bot bou bta btb btc btd bte btl bto btt btu bua bub buc bud bue bul buo but buu c-- caa cab cac cad cae cal cao cat cau cba cbb cbc cbd cbe cbl cbo cbt cbu cca ccb ccc ccd cce ccl cco cct ccu cda cdb cdc cdd cde cdl cdo cdt cdu ce- cea ceb cec ced cee cel ceo cet ceu cl- cla clb clc cld cle cll clo clt clu co- coa cob coc cod coe col coo cot cou cta ctb ctc ctd cte ctl cto ctt ctu cua cub cuc cud cue cul cuo cut cuu daa dab dac dad dae dal dao dat dau dba dbb dbc dbd dbe dbl dbo dbt dbu dca dcb dcc dcd dce dcl dco dct dcu dda ddb ddc ddd dde ddl ddo ddt ddu de- dea deb dec ded dee del deo det deu dl- dla dlb dlc dld dle dll dlo dlt dlu doa dob doc dod doe dol doo dot dou dta dtb dtc dtd dte dtl dto dtt dtu dua dub duc dud due dul duo dut eaa eab eac ead eae eal eao eat eau eba ebb ebc ebd ebe ebl ebo ebt ebu ec- eca ecb ecc ecd ece ecl eco ect ecu ed- eda edb edc edd ede edl edo edt edu eea eeb eec eed eee eel eeo eet ela elb elc eld ele ell elo elt elu eo- eoa eob eoc eod eoe eol eoo eot eou eta etb etc etd ete etl eto ett etu eu- eua eub euc eud eue eul eut la- laa lab lac lad lae lal lao lat lau lba lbb lbc lbd lbe lbl lbo lbt lbu lca lcb lcc lcd lce lcl lco lct lcu lda ldb ldc ldd lde ldl ldo ldt ldu lea leb lec led lee lel leo let leu lla llb llc lld lle lll llo llt llu loa lob loc lod loe lol loo lot lou lta ltb ltc ltd lte ltl lto ltt ltu lua lub luc lud lue lul luo lut luu oaa oab oac oad oae oal oao oat oau ob- oba obb obc obd obe obl obo obt obu oc- oca ocb occ ocd ocl oco oct ocu oda odb odc odd ode odl odo odt odu oea oeb oec oed oee oel oeo oet ola olb olc old ole oll olo olt olu oo- ooa oob ooc ood ool ooo oot ot- ota otb otc otd ote otl oto ott otu ou- oua ouc oud oue oul ouo out taa tab tac tad tae tal tao tat tau tba tbb tbc tbd tbe tbl tbo tbt tbu tca tcb tcc tcd tce tcl tco tct tcu tda tdb tdc tdd tde tdl tdo tdt tdu te- tea teb tec ted tee tel teo tet teu tla tlc tld tle tll tlo tlt tlu to- toa tob toc tod toe tol too tot tou tta ttb ttc ttd tte ttl tto ttt ttu tua tub tuc tud tue tul tuo tut tuu ua- uaa uab uac uad uae ual uao uat uau uba ubb ubc ube ubl ubo ubt ubu uca ucb ucc ucd uce ucl uco uct ucu uda udb udc udd ude udl udo udt udu uea ueb uec ued uee uel uet ula ulb ulc uld ule ull ulo ult ulu uoa uob uoc uod uoe uol uoo uot uta utb utc utd ute utl uto utt utu uua uuc uue uut uuu