a-a a-b a-c a-t a-z aaa aab aac aad aae aam aat aau aaz ab- aba abb abc abd abe abm abt abu abz ac- aca acb acc acd ace acm act acu acz ad- ada adb adc add ade adm adt adu adz aea aeb aec aed aee aem aet aeu aez ama amb amc amd ame amm amt amu amz at- ata atb atc atd ate atm att atu atz au- aua aub auc aud aue aum aut auz az- aza azb azd aze azm azt azu azz b-u baa bab bac bad bae bam bat bau baz bba bbb bbc bbd bbe bbm bbt bbu bca bcb bcc bcd bce bcm bct bcu bcz bda bdb bdc bdd bde bdm bdt bdu bdz be- bea beb bec bed bee bem bet beu bez bma bmb bmc bmd bme bmm bmt bmu bmz bta btb btc btd bte btm btt btu btz bua bub buc bud bue bum but buu buz bza bzd bze bzu bzz c-- caa cab cac cad cae cam cat cau caz cba cbb cbc cbd cbe cbm cbt cbu cbz cca ccb ccc ccd cce ccm cct ccu ccz cda cdb cdc cdd cde cdm cdt cdu cdz ce- cea ceb cec ced cee cem cet ceu cez cma cmb cmc cmd cme cmm cmt cmu cta ctb ctc ctd cte ctm ctt ctu ctz cua cub cuc cud cue cum cut cuu cuz cz- czc czd cze czm czt daa dab dac dad dae dam dat dau daz dba dbb dbc dbd dbe dbm dbt dbu dbz dca dcb dcc dcd dce dcm dct dcu dda ddb ddc ddd dde ddm ddt ddu ddz de- dea deb dec ded dee dem det deu dez dma dmb dmc dmd dme dmm dmt dmu dmz dta dtb dtc dtd dte dtm dtt dtu dtz dua dub duc dud due dum dut duz dza dzb dzd dze dzu eaa eab eac ead eae eam eat eau eaz eba ebb ebc ebd ebe ebm ebt ebu ec- eca ecb ecc ecd ece ecm ect ecu ed- eda edb edc edd ede edm edt edu eea eeb eec eed eee eem eet em- ema emb emc emd eme emm emt emu eta etb etc etd ete etm ett etu etz eu- eua eub euc eud eue eut eze ezz maa mab mac mad mae mam mat mau maz mba mbb mbc mbd mbe mbm mbt mbu mc- mca mcb mcc mcd mce mcm mct mcu mcz mda mdb mdc mdd mde mdm mdt mdu mdz mea meb mec med mee mem met meu mez mma mmb mmc mmd mme mmm mmt mmu mmz mta mtb mtc mtd mte mtm mtt mtu mua mub muc mud mue mum mut muu mza mzb mzm mzt taa tab tac tad tae tam tat tau taz tba tbb tbc tbd tbe tbm tbt tbu tbz tca tcb tcc tcd tce tcm tct tcu tda tdb tdc tdd tde tdm tdt tdu te- tea teb tec ted tee tem tet teu tez tma tmb tmc tmd tme tmm tmt tmu tmz tta ttb ttc ttd tte ttm ttt ttu tua tub tuc tud tue tum tut tuu tuz tza tzd tze tzu ua- uaa uab uac uad uae uam uat uau uaz uba ubb ubc ube ubt ubu uca ucb ucc ucd uce ucm uct ucu uda udb udc udd ude udm udt udu uea ueb uec ued uee uem uet um- uma umb umc umd ume umm umt umu uta utb utc utd ute utm utt utu utz uua uuc uue uum uut uuu uza uzb uzu zaa zab zac zad zam zat zaz zbb zbc zbm zbt zce zdm zdt zea zeb zec zed zee zem zet zez zma zmb zmc zmd zmm zmt zta zte ztm zub zuc zud zum zut zuz zzt zzz