c-- ccc ccd cce ccl ccs cct ccu cdc cdd cde cdl cds cdt cdu ce- cec ced cee cel ces cet ceu cl- clc cld cle cll cls clt clu csc csd cse csl css cst csu ctc ctd cte ctl cts ctt ctu cuc cud cue cul cus cut cuu dcc dcd dce dcl dcs dct dcu ddc ddd dde ddl dds ddt ddu de- dec ded dee del des det deu dl- dlc dld dle dll dls dlt dlu dsc dsd dse dsl dss dst dsu dtc dtd dte dtl dts dtt dtu duc dud due dul dus dut ec- ecc ecd ece ecl ecs ect ecu ed- edc edd ede edl eds edt edu eec eed eee eel ees eet elc eld ele ell els elt elu es- esc esd ese esl ess est esu etc etd ete etl ets ett etu eu- euc eud eue eul eus eut lcc lcd lce lcl lcs lct lcu ldc ldd lde ldl lds ldt ldu lec led lee lel les let leu llc lld lle lll lls llt llu lsc lsd lse lsl lss lst lsu ltc ltd lte ltl lts ltt ltu luc lud lue lul lus lut luu scc scd sce scl scs sct scu sdc sdd sde sdl sds sdt sdu se- sec sed see sel ses set seu slc sld sle sll sls slt slu ss- ssc ssd sse ssl sss sst ssu stc std ste stl sts stt stu suc sud sue sul sus sut suu tcc tcd tce tcl tcs tct tcu tdc tdd tde tdl tds tdt tdu te- tec ted tee tel tes tet teu tlc tld tle tll tls tlt tlu tsc tsd tse tsl tss tst tsu ttc ttd tte ttl tts ttt ttu tuc tud tue tul tus tut tuu ucc ucd uce ucl ucs uct ucu udc udd ude udl uds udt udu uec ued uee uel ues uet ulc uld ule ull uls ult ulu usc usd use usl uss ust usu utc utd ute utl uts utt utu uuc uue uus uut uuu