c-- ccc ccd cce ccl ccn ccu ccx cdc cdd cde cdl cdn cdu cdx ce- cec ced cee cel cen ceu cex cl- clc cld cle cll cln clu clx cn- cnc cnd cne cnl cnn cnu cnx cuc cud cue cul cun cuu cxc cxl cxx dcc dcd dce dcl dcn dcu dcx ddc ddd dde ddl ddn ddu ddx de- dec ded dee del den deu dex dl- dlc dld dle dll dlu dlx dnc dnd dne dnl dnn duc dud due dul dun dux dxc dxd dxl dxn dxx ec- ecc ecd ece ecl ecn ecu ecx ed- edc edd ede edl edn edu edx eec eed eee eel een eex elc eld ele ell eln elu elx en- enc end ene enl enn enu eu- euc eud eue eul eun eux ex- exc exd exe exl exu exx lcc lcd lce lcl lcn lcu lcx ldc ldd lde ldl ldn ldu lec led lee lel len leu lex llc lld lle lll lln llu lnc lnd lne lnl lnn lnu luc lud lue lul lun luu lux lxc lxd lxx ncc ncd nce ncl ncn ncu ncx ndc ndd nde ndl ndn ndu ne- nec ned nee nel nen neu nex nlc nld nle nll nln nlu nlx nnc nne nnl nnn nnu nuc nud nue nul nun nuu nux nxc nxd nxl ucc ucd uce ucl ucn ucu udc udd ude udl udn udu udx uec ued uee uel uen ulc uld ule ull uln ulu un- unc und une unl unn unu unx uuc uue uun uuu uxc uxu xcd xcl xcx xdc xde xed xee xel xen xeu xex xld xnc xnu xue xul xun xxl xxx