b-u bbb bbc bbe bbl bbs bbt bbu bcb bcc bce bcj bcl bcs bct bcu be- beb bec bee bel bes bet beu bjc bjj bjs bjt bju blb blc ble blj bll bls blt blu bsb bsc bse bsj bsl bss bst bsu btb btc bte btl bts btt btu bub buc bue buj bul bus but buu c-- c-j cbb cbc cbe cbj cbl cbs cbt cbu ccb ccc cce ccj ccl ccs cct ccu ce- ceb cec cee cej cel ces cet ceu cjb cjc cjs cl- clb clc cle clj cll cls clt clu csb csc cse csj csl css cst csu ctb ctc cte ctl cts ctt ctu cub cuc cue cul cus cut cuu ebb ebc ebe ebj ebl ebs ebt ebu ec- ecb ecc ece ecj ecl ecs ect ecu eeb eec eee eel ees eet ejc ejl ejt eju elb elc ele ell els elt elu es- esb esc ese esl ess est esu etb etc ete etj etl ets ett etu eu- eub euc eue euj eul eus eut jbc jbj jbl jbs jbt jbu jcb jcc jce jcl jcs jct jcu jeb jec jee jej jel jes jet jeu jjb jjc jjj jjl jjs jju jlb jlc jle jll jls jlt jlu jsb jsc jse jsj jsl jss jst jsu jtb jtc jte jtl jts jtt jtu jub jue jul jus jut lbb lbc lbe lbj lbl lbs lbt lbu lcb lcc lce lcj lcl lcs lct lcu leb lec lee lej lel les let leu lje ljj ljs lju llb llc lle llj lll lls llt llu lsb lsc lse lsj lsl lss lst lsu ltb ltc lte ltl lts ltt ltu lub luc lue lul lus lut luu sbb sbc sbe sbj sbl sbs sbt sbu scb scc sce scj scl scs sct scu se- seb sec see sej sel ses set seu sjb sjc sje sjj sjs sjt sju slb slc sle slj sll sls slt slu ss- ssb ssc sse ssj ssl sss sst ssu stb stc ste stj stl sts stt stu sub suc sue sul sus sut suu tbb tbc tbe tbj tbl tbs tbt tbu tcb tcc tce tcj tcl tcs tct tcu te- teb tec tee tej tel tes tet teu tjc tje tjs tju tlc tle tlj tll tls tlt tlu tsb tsc tse tsj tsl tss tst tsu ttb ttc tte ttl tts ttt ttu tub tuc tue tuj tul tus tut tuu ubb ubc ube ubl ubs ubt ubu ucb ucc uce ucj ucl ucs uct ucu ueb uec uee uel ues uet ujc ujs ulb ulc ule ull uls ult ulu usb usc use usj usl uss ust usu utb utc ute utj utl uts utt utu uuc uue uus uut uuu