c-- ccc ccd cce ccf ccl ccs cct ccu cdc cdd cde cdf cdl cds cdt cdu ce- cec ced cee cef cel ces cet ceu cfc cfd cfe cff cfl cfs cft cfu cl- clc cld cle clf cll cls clt clu csc csd cse csf csl css cst csu ctc ctd cte ctf ctl cts ctt ctu cuc cud cue cuf cul cus cut cuu dcc dcd dce dcf dcl dcs dct dcu ddc ddd dde ddf ddl dds ddt ddu de- dec ded dee def del des det deu dfc dfd dfe dff dfl dfs dft dfu dl- dlc dld dle dlf dll dls dlt dlu dsc dsd dse dsf dsl dss dst dsu dtc dtd dte dtf dtl dts dtt dtu duc dud due duf dul dus dut ec- ecc ecd ece ecf ecl ecs ect ecu ed- edc edd ede edf edl eds edt edu eec eed eee eef eel ees eet ef- efc efd efe eff efl efs eft elc eld ele elf ell els elt elu es- esc esd ese esf esl ess est esu etc etd ete etf etl ets ett etu eu- euc eud eue euf eul eus eut fcc fcd fce fcf fcl fcs fct fcu fdc fdd fde fdf fdl fds fdt fdu fec fed fee fef fel fes fet feu ffc ffd ffe fff ffl ffs fft ffu flc fld fle flf fll fls flt flu fsc fsd fse fsf fsl fss fst fsu ftc ftd fte ftf ftl fts ftt ftu fud fue fuf ful fus fut fuu lcc lcd lce lcf lcl lcs lct lcu ldc ldd lde ldf ldl lds ldt ldu lec led lee lef lel les let leu lfc lfd lfe lff lfl lfs lft lfu llc lld lle llf lll lls llt llu lsc lsd lse lsf lsl lss lst lsu ltc ltd lte ltf ltl lts ltt ltu luc lud lue luf lul lus lut luu scc scd sce scf scl scs sct scu sdc sdd sde sdf sdl sds sdt sdu se- sec sed see sef sel ses set seu sfc sfd sfe sff sfl sfs sft sfu slc sld sle slf sll sls slt slu ss- ssc ssd sse ssf ssl sss sst ssu stc std ste stf stl sts stt stu suc sud sue suf sul sus sut suu tcc tcd tce tcf tcl tcs tct tcu tdc tdd tde tdf tdl tds tdt tdu te- tec ted tee tef tel tes tet teu tfc tfd tfe tff tfl tfs tft tfu tlc tld tle tlf tll tls tlt tlu tsc tsd tse tsf tsl tss tst tsu ttc ttd tte ttf ttl tts ttt ttu tuc tud tue tuf tul tus tut tuu ucc ucd uce ucf ucl ucs uct ucu udc udd ude udf udl uds udt udu uec ued uee uef uel ues uet ufc ufd ufe uff ufl ufs uft ufu ulc uld ule ulf ull uls ult ulu usc usd use usf usl uss ust usu utc utd ute utf utl uts utt utu uuc uue uus uut uuu