c-- ccc ccd cce cck ccl ccm ccu cdc cdd cde cdk cdl cdm cdu ce- cec ced cee cek cel cem ceu ckc ckd ckm cl- clc cld cle clk cll clm clu cmc cmd cme cmk cml cmm cmu cuc cud cue cuk cul cum cuu dcc dcd dce dck dcl dcm dcu ddc ddd dde ddk ddl ddm ddu de- dec ded dee dek del dem deu dkc dke dkk dkl dkm dku dl- dlc dld dle dlk dll dlm dlu dmc dmd dme dmk dml dmm dmu duc dud due duk dul dum ec- ecc ecd ece eck ecl ecm ecu ed- edc edd ede edk edl edm edu eec eed eee eek eel eem ekc ekd eke ekl eku elc eld ele elk ell elm elu em- emc emd eme emk eml emm emu eu- euc eud eue eul kcc kcd kce kck kcl kcm kcu kdc kde kdk kdl kdm kdu ke- kec ked kee kek kel kem kkc kke kkk kkl kkm kku kl- klc kld klm klu kmc kmd kme kmk kml kmm kmu kuc kud kue kuk kul kum kuu lcc lcd lce lck lcl lcm lcu ldc ldd lde ldk ldl ldm ldu lec led lee lek lel lem leu lkl llc lld lle llk lll llm llu lmc lmd lme lmk lml lmm lmu luc lud lue luk lul lum luu mc- mcc mcd mce mck mcl mcm mcu mdc mdd mde mdk mdl mdm mdu mec med mee mek mel mem meu mkc mkd mke mkk mkl mkm mku mlc mld mle mlk mll mlm mlu mmc mmd mme mmk mml mmm mmu muc mud mue muk mul mum muu ucc ucd uce uck ucl ucm ucu udc udd ude udk udl udm udu uec ued uee uel uem ukc uke ukk ukl uku ulc uld ule ulk ull ulm ulu um- umc umd ume uml umm umu uuc uue uum uuu