a-a a-b a-c a-t aaa aab aac aae aaj aan aas aat aau ab- aba abb abc abe abj abn abs abt abu ac- aca acb acc ace acj acn acs act acu aea aeb aec aee aej aen aes aet aeu aja ajb ajc aje ajj ajn ajs ajt aju an- ana anb anc ane anj ann ans ant anu as- asa asb asc ase asj asn ass ast asu at- ata atb atc ate atn ats att atu au- aua aub auc aue auj aun aus aut b-u baa bab bac bae baj ban bas bat bau bba bbb bbc bbe bbn bbs bbt bbu bca bcb bcc bce bcj bcn bcs bct bcu be- bea beb bec bee ben bes bet beu bja bjc bjj bjn bjs bjt bju bna bnb bnc bne bnj bnn bns bnt bnu bsa bsb bsc bse bsj bsn bss bst bsu bta btb btc bte btn bts btt btu bua bub buc bue buj bun bus but buu c-- c-j caa cab cac cae caj can cas cat cau cba cbb cbc cbe cbj cbn cbs cbt cbu cca ccb ccc cce ccj ccn ccs cct ccu ce- cea ceb cec cee cej cen ces cet ceu cja cjb cjc cjs cn- cna cnb cnc cne cnj cnn cns cnt cnu csa csb csc cse csj csn css cst csu cta ctb ctc cte ctn cts ctt ctu cua cub cuc cue cun cus cut cuu eaa eab eac eae eaj ean eas eat eau eba ebb ebc ebe ebj ebn ebs ebt ebu ec- eca ecb ecc ece ecj ecn ecs ect ecu eea eeb eec eee een ees eet eja ejc ejt eju en- ena enb enc ene enn ens ent enu es- esa esb esc ese esn ess est esu eta etb etc ete etj etn ets ett etu eu- eua eub euc eue euj eun eus eut jaa jab jac jae jaj jan jas jat jau jba jbc jbj jbs jbt jbu jca jcb jcc jce jcs jct jcu jea jeb jec jee jej jen jes jet jeu jja jjb jjc jjj jjs jju jna jnc jne jnj jnn jns jnt jnu jsa jsb jsc jse jsj jsn jss jst jsu jta jtb jtc jte jtn jts jtt jtu jub jue jun jus jut naa nab nac nae naj nan nas nat nau nba nbb nbc nbe nbn nbs nbt nbu nca ncb ncc nce ncn ncs nct ncu ne- nea neb nec nee nej nen nes net neu nja njc nje njn njs nju nna nnb nnc nne nnn nns nnt nnu nsa nsb nsc nse nsn nss nst nsu nta ntb ntc nte ntn nts ntt ntu nua nub nuc nue nuj nun nus nut nuu saa sab sac sae saj san sas sat sau sba sbb sbc sbe sbj sbn sbs sbt sbu sca scb scc sce scj scn scs sct scu se- sea seb sec see sej sen ses set seu sja sjb sjc sje sjj sjs sjt sju sna snb snc sne snj snn sns snt snu ss- ssa ssb ssc sse ssj ssn sss sst ssu sta stb stc ste stj stn sts stt stu sua sub suc sue sun sus sut suu taa tab tac tae taj tan tas tat tau tba tbb tbc tbe tbj tbn tbs tbt tbu tca tcb tcc tce tcj tcn tcs tct tcu te- tea teb tec tee tej ten tes tet teu tjc tje tjs tju tna tnb tnc tne tnn tns tnt tsa tsb tsc tse tsj tsn tss tst tsu tta ttb ttc tte ttn tts ttt ttu tua tub tuc tue tuj tun tus tut tuu ua- uaa uab uac uae uaj uan uas uat uau uba ubb ubc ube ubn ubs ubt ubu uca ucb ucc uce ucj ucn ucs uct ucu uea ueb uec uee uen ues uet ujc ujs un- una unb unc une unn uns unt unu usa usb usc use usj usn uss ust usu uta utb utc ute utj utn uts utt utu uua uuc uue uun uus uut uuu