b-u bbb bbc bbd bbe bbs bbt bbu bcb bcc bcd bce bcj bcs bct bcu bdb bdc bdd bde bdj bds bdt bdu be- beb bec bed bee bes bet beu bjc bjd bjj bjs bjt bju bsb bsc bsd bse bsj bss bst bsu btb btc btd bte bts btt btu bub buc bud bue buj bus but buu c-- c-j cbb cbc cbd cbe cbj cbs cbt cbu ccb ccc ccd cce ccj ccs cct ccu cdb cdc cdd cde cdj cds cdt cdu ce- ceb cec ced cee cej ces cet ceu cjb cjc cjd cjs csb csc csd cse csj css cst csu ctb ctc ctd cte cts ctt ctu cub cuc cud cue cus cut cuu dbb dbc dbd dbe dbs dbt dbu dcb dcc dcd dce dcs dct dcu ddb ddc ddd dde dds ddt ddu de- deb dec ded dee dej des det deu dj- djb djc djd dje djs djt dsb dsc dsd dse dsj dss dst dsu dtb dtc dtd dte dtj dts dtt dtu dub duc dud due dus dut ebb ebc ebd ebe ebj ebs ebt ebu ec- ecb ecc ecd ece ecj ecs ect ecu ed- edb edc edd ede edj eds edt edu eeb eec eed eee ees eet ejc ejd ejt eju es- esb esc esd ese ess est esu etb etc etd ete etj ets ett etu eu- eub euc eud eue euj eus eut j-d jbc jbj jbs jbt jbu jcb jcc jcd jce jcs jct jcu jdb jdc jde jds jdt jeb jec jed jee jej jes jet jeu jjb jjc jjj jjs jju jsb jsc jsd jse jsj jss jst jsu jtb jtc jte jts jtt jtu jub jud jue jus jut sbb sbc sbd sbe sbj sbs sbt sbu scb scc scd sce scj scs sct scu sdb sdc sdd sde sdj sds sdt sdu se- seb sec sed see sej ses set seu sjb sjc sjd sje sjj sjs sjt sju ss- ssb ssc ssd sse ssj sss sst ssu stb stc std ste stj sts stt stu sub suc sud sue sus sut suu tbb tbc tbd tbe tbj tbs tbt tbu tcb tcc tcd tce tcj tcs tct tcu tdb tdc tdd tde tds tdt tdu te- teb tec ted tee tej tes tet teu tjc tjd tje tjs tju tsb tsc tsd tse tsj tss tst tsu ttb ttc ttd tte tts ttt ttu tub tuc tud tue tuj tus tut tuu ubb ubc ube ubs ubt ubu ucb ucc ucd uce ucj ucs uct ucu udb udc udd ude udj uds udt udu ueb uec ued uee ues uet ujc ujs usb usc usd use usj uss ust usu utb utc utd ute utj uts utt utu uuc uue uus uut uuu