a-a a-b a-c a-t aaa aab aac aad aae aaf aao aat aau ab- aba abb abc abd abe abf abo abt abu ac- aca acb acc acd ace acf aco act acu ad- ada adb adc add ade adf ado adt adu aea aeb aec aed aee aef aeo aet aeu af- afa afb afc afd afe aff afo aft afu aoa aob aoc aod aoe aof aoo aot aou at- ata atb atc atd ate atf ato att atu au- aua aub auc aud aue auf auo aut b-u baa bab bac bad bae baf bao bat bau bba bbb bbc bbd bbe bbf bbo bbt bbu bca bcb bcc bcd bce bcf bco bct bcu bda bdb bdc bdd bde bdf bdo bdt bdu be- bea beb bec bed bee bef beo bet beu bfa bfb bfc bfd bfe bff bfo bft bfu boa bob boc bod boe bof boo bot bou bta btb btc btd bte btf bto btt btu bua bub buc bud bue buf buo but buu c-- caa cab cac cad cae caf cao cat cau cba cbb cbc cbd cbe cbf cbo cbt cbu cca ccb ccc ccd cce ccf cco cct ccu cda cdb cdc cdd cde cdf cdo cdt cdu ce- cea ceb cec ced cee cef ceo cet ceu cfa cfb cfc cfd cfe cff cfo cft cfu co- coa cob coc cod coe cof coo cot cou cta ctb ctc ctd cte ctf cto ctt ctu cua cub cuc cud cue cuf cuo cut cuu daa dab dac dad dae daf dao dat dau dba dbb dbc dbd dbe dbf dbo dbt dbu dca dcb dcc dcd dce dcf dco dct dcu dda ddb ddc ddd dde ddf ddo ddt ddu de- dea deb dec ded dee def deo det deu dfa dfb dfc dfd dfe dff dfo dft dfu doa dob doc dod doe dof doo dot dou dta dtb dtc dtd dte dtf dto dtt dtu dua dub duc dud due duf duo dut eaa eab eac ead eae eaf eao eat eau eba ebb ebc ebd ebe ebf ebo ebt ebu ec- eca ecb ecc ecd ece ecf eco ect ecu ed- eda edb edc edd ede edf edo edt edu eea eeb eec eed eee eef eeo eet ef- efa efb efc efd efe eff efo eft eo- eoa eob eoc eod eoe eof eoo eot eou eta etb etc etd ete etf eto ett etu eu- eua eub euc eud eue euf eut faa fab fac fad fae faf fao fat fau fba fbb fbc fbd fbe fbf fbo fbt fbu fca fcb fcc fcd fce fcf fco fct fcu fda fdb fdc fdd fde fdf fdo fdt fdu fea feb fec fed fee fef feo fet feu ffa ffc ffd ffe fff ffo fft ffu foa fob foc foe fof foo fot fou fta ftb ftc ftd fte ftf fto ftt ftu fua fub fud fue fuf fuo fut fuu oaa oab oac oad oae oaf oao oat oau ob- oba obb obc obd obe obf obo obt obu oc- oca ocb occ ocd ocf oco oct ocu oda odb odc odd ode odf odo odt odu oea oeb oec oed oee oef oeo oet of- ofa ofb ofc ofd ofe off ofo oft ofu oo- ooa oob ooc ood oof ooo oot ot- ota otb otc otd ote otf oto ott otu ou- oua ouc oud oue ouf ouo out taa tab tac tad tae taf tao tat tau tba tbb tbc tbd tbe tbf tbo tbt tbu tca tcb tcc tcd tce tcf tco tct tcu tda tdb tdc tdd tde tdf tdo tdt tdu te- tea teb tec ted tee tef teo tet teu tfa tfb tfc tfd tfe tff tfo tft tfu to- toa tob toc tod toe tof too tot tou tta ttb ttc ttd tte ttf tto ttt ttu tua tub tuc tud tue tuf tuo tut tuu ua- uaa uab uac uad uae uaf uao uat uau uba ubb ubc ube ubf ubo ubt ubu uca ucb ucc ucd uce ucf uco uct ucu uda udb udc udd ude udf udo udt udu uea ueb uec ued uee uef uet ufa ufc ufd ufe uff ufo uft ufu uoa uob uoc uod uoe uoo uot uta utb utc utd ute utf uto utt utu uua uuc uue uut uuu

a-be a-do a-fu aaaa aaab aaac aaad aaae aaaf aaba aabb aabc aabd aabt aaca aacb aacc aacd aace aacf aaco aact aacu aada aadc aade aadt aadu aaea aaec aafa aafb aafc aafd aaff aaoe aaoo aata aatc aatf aatt abaa abab abac abad abae abaf abat abau abb- abba abbb abbe abbo abbt abca abcb abcc abcd abcf abct abda abdo abdu abec abed abee abet abff aboa abob abod abof aboo abot abou abta abtu abua abud abue abuf abut ac-t acaa acab acac acad acae acat acba acca accc accd acce accf acco acct accu acda acdb acdc acde acdf acdt ace- acea acec aced acet acfc acfd acfe acft acoa acod acoe acot acou acta actc acte actf acto actt actu acu- acue acuf acuo acut adaa adab adac adad adae adao adat adba adbc adcc adda addc addd adde addo addu adea adeb adee adeo adet adfa adfc adob adoc adod adoe adoo adot adta adua adub adue aeac aeaf aecb aect aede aedt aeta aetc aetf aeto aett afaa afad afao afat afca afcb afcc afcu afdb afdc afee afet affa affc affo afft afoa afoe afoo afta aftc afte afua afud afue aoba aoca aoce aoeu aotc aotd aotf aouf aout at-t ataa atab atac atad atae atat atca atcc atcf atco atdt atea atec ated atee atef ateo atfb atfc atfe atob atoc atod atoe atof atot atta atte atto attu atua atub atuc auaa aube auca auce auct audc aude audo aufc aufe aut- aute auto baaa baad baaf baat baba babb babe babo babu bac-