bbb bbc bbe bbo bbs bbt bbx bcb bcc bce bcj bco bcs bct bcx be- beb bec bee beo bes bet bex bjc bjj bjs bjt bob boc boe boj boo bos bot box bsb bsc bse bsj bso bss bst bsx btb btc bte bto bts btt btx bxb bxj bxo bxx c-- c-j cbb cbc cbe cbj cbo cbs cbt cbx ccb ccc cce ccj cco ccs cct ccx ce- ceb cec cee cej ceo ces cet cex cjb cjc cjs co- cob coc coe coj coo cos cot cox csb csc cse csj cso css cst csx ctb ctc cte cto cts ctt ctx cxc cxj cxo cxs cxt cxx ebb ebc ebe ebj ebo ebs ebt ebx ec- ecb ecc ece ecj eco ecs ect ecx eeb eec eee eeo ees eet eex ejc ejo ejt eo- eob eoc eoe eoo eos eot es- esb esc ese eso ess est esx etb etc ete etj eto ets ett etx ex- exc exe exo exs ext exx jbc jbj jbo jbs jbt jcb jcc jce jco jcs jct jeb jec jee jej jeo jes jet jjb jjc jjj jjs job joc joe joj joo jos jot jsb jsc jse jsj jso jss jst jtb jtc jte jts jtt jxs ob- obb obc obe obj obo obs obt obx oc- ocb occ ocj oco ocs oct ocx oeb oec oee oeo oes oet oex ojb ojc oje ojo ojs oo- oob ooc ooo oos oot oox os- osb osc ose osj oso oss ost osx ot- otb otc ote oto ots ott ox- oxb oxc oxo oxt oxx sbb sbc sbe sbj sbo sbs sbt sbx scb scc sce scj sco scs sct scx se- seb sec see sej seo ses set sex sjb sjc sje sjj sjs sjt sob soc soe soj soo sos sot sox ss- ssb ssc sse ssj sso sss sst ssx stb stc ste stj sto sts stt stx sxc sxs sxt t-x tbb tbc tbe tbj tbo tbs tbt tcb tcc tce tcj tco tcs tct tcx te- teb tec tee tej teo tes tet tex tjc tje tjo tjs to- tob toc toe toj too tos tot tox tsb tsc tse tsj tso tss tst tsx ttb ttc tte tto tts ttt ttx txe txs txt xbc xbe xbx xcb xcx xee xes xet xex xjo xjs xoc xoo xos xot xox xsb xsc xss xst xtc xts xtx xxo xxx