c-- ccc ccd cce cck ccl ccs ccu cdc cdd cde cdk cdl cds cdu ce- cec ced cee cek cel ces ceu ckc ckd cks cl- clc cld cle clk cll cls clu csc csd cse csk csl css csu cuc cud cue cuk cul cus cuu dcc dcd dce dck dcl dcs dcu ddc ddd dde ddk ddl dds ddu de- dec ded dee dek del des deu dkc dke dkk dkl dks dku dl- dlc dld dle dlk dll dls dlu dsc dsd dse dsk dsl dss dsu duc dud due duk dul dus ec- ecc ecd ece eck ecl ecs ecu ed- edc edd ede edk edl eds edu eec eed eee eek eel ees ekc ekd eke ekl eks eku elc eld ele elk ell els elu es- esc esd ese esk esl ess esu eu- euc eud eue eul eus kcc kcd kce kck kcl kcs kcu kdc kde kdk kdl kds kdu ke- kec ked kee kek kel kes kkc kke kkk kkl kks kku kl- klc kld kls klu ksc ksd kse ksk ksl kss ksu kuc kud kue kuk kul kus kuu lcc lcd lce lck lcl lcs lcu ldc ldd lde ldk ldl lds ldu lec led lee lek lel les leu lkl lks llc lld lle llk lll lls llu lsc lsd lse lsk lsl lss lsu luc lud lue luk lul lus luu scc scd sce sck scl scs scu sdc sdd sde sdk sdl sds sdu se- sec sed see sek sel ses seu sk- skc skd ske skk skl sks sku slc sld sle slk sll sls slu ss- ssc ssd sse ssk ssl sss ssu suc sud sue suk sul sus suu ucc ucd uce uck ucl ucs ucu udc udd ude udk udl uds udu uec ued uee uel ues ukc uke ukk ukl uku ulc uld ule ulk ull uls ulu usc usd use usk usl uss usu uuc uue uus uuu