c-- ccc ccd cce cck ccl ccp ccs cdc cdd cde cdk cdl cdp cds ce- cec ced cee cek cel cep ces ckc ckd cks cl- clc cld cle clk cll clp cls cpc cpd cpe cpk cpl cpp cps csc csd cse csk csl csp css dcc dcd dce dck dcl dcp dcs ddc ddd dde ddk ddl ddp dds de- dec ded dee dek del dep des dkc dke dkk dkl dkp dks dl- dlc dld dle dlk dll dlp dls dpc dpd dpe dpk dpl dpp dps dsc dsd dse dsk dsl dsp dss ec- ecc ecd ece eck ecl ecs ed- edc edd ede edk edl edp eds eec eed eee eek eel eep ees ekc ekd eke ekl ekp eks elc eld ele elk ell elp els ep- epc epd epe epl epp eps es- esc esd ese esk esl esp ess kcc kcd kce kck kcl kcp kcs kdc kde kdk kdl kdp kds ke- kec ked kee kek kel kep kes kkc kke kkk kkl kkp kks kl- klc kld kls kpc kpd kpe kpk kpl kpp kps ksc ksd kse ksk ksl ksp kss l-p lcc lcd lce lck lcl lcp lcs ldc ldd lde ldk ldl ldp lds lec led lee lek lel lep les lkl lkp lks llc lld lle llk lll llp lls lpc lpd lpe lpk lpl lpp lps lsc lsd lse lsk lsl lsp lss p-p pcc pcd pce pck pcl pcp pcs pdc pdd pde pdk pdl pdp pds pec ped pee pek pel pep pes pkc pkd pke pkl pkp pks plc pld ple plk pll plp pls ppc ppd ppe ppk ppl ppp pps ps- psc psd pse psk psl psp pss scc scd sce sck scl scp scs sdc sdd sde sdk sdl sdp sds se- sec sed see sek sel sep ses sk- skc skd ske skk skl skp sks slc sld sle slk sll slp sls spc spd spe spk spl spp sps ss- ssc ssd sse ssk ssl ssp sss