a-a a-b a-c a-t aaa aab aac aae aaj aas aat aau ab- aba abb abc abe abj abs abt abu ac- aca acb acc ace acj acs act acu aea aeb aec aee aej aes aet aeu aja ajb ajc aje ajj ajs ajt aju as- asa asb asc ase asj ass ast asu at- ata atb atc ate ats att atu au- aua aub auc aue auj aus aut b-u baa bab bac bae baj bas bat bau bba bbb bbc bbe bbs bbt bbu bca bcb bcc bce bcj bcs bct bcu be- bea beb bec bee bes bet beu bja bjc bjj bjs bjt bju bsa bsb bsc bse bsj bss bst bsu bta btb btc bte bts btt btu bua bub buc bue buj bus but buu c-- c-j caa cab cac cae caj cas cat cau cba cbb cbc cbe cbj cbs cbt cbu cca ccb ccc cce ccj ccs cct ccu ce- cea ceb cec cee cej ces cet ceu cja cjb cjc cjs csa csb csc cse csj css cst csu cta ctb ctc cte cts ctt ctu cua cub cuc cue cus cut cuu eaa eab eac eae eaj eas eat eau eba ebb ebc ebe ebj ebs ebt ebu ec- eca ecb ecc ece ecj ecs ect ecu eea eeb eec eee ees eet eja ejc ejt eju es- esa esb esc ese ess est esu eta etb etc ete etj ets ett etu eu- eua eub euc eue euj eus eut jaa jab jac jae jaj jas jat jau jba jbc jbj jbs jbt jbu jca jcb jcc jce jcs jct jcu jea jeb jec jee jej jes jet jeu jja jjb jjc jjj jjs jju jsa jsb jsc jse jsj jss jst jsu jta jtb jtc jte jts jtt jtu jub jue jus jut saa sab sac sae saj sas sat sau sba sbb sbc sbe sbj sbs sbt sbu sca scb scc sce scj scs sct scu se- sea seb sec see sej ses set seu sja sjb sjc sje sjj sjs sjt sju ss- ssa ssb ssc sse ssj sss sst ssu sta stb stc ste stj sts stt stu sua sub suc sue sus sut suu taa tab tac tae taj tas tat tau tba tbb tbc tbe tbj tbs tbt tbu tca tcb tcc tce tcj tcs tct tcu te- tea teb tec tee tej tes tet teu tjc tje tjs tju tsa tsb tsc tse tsj tss tst tsu tta ttb ttc tte tts ttt ttu tua tub tuc tue tuj tus tut tuu ua- uaa uab uac uae uaj uas uat uau uba ubb ubc ube ubs ubt ubu uca ucb ucc uce ucj ucs uct ucu uea ueb uec uee ues uet ujc ujs usa usb usc use usj uss ust usu uta utb utc ute utj uts utt utu uua uuc uue uus uut uuu