-ic c-- ccc cce cci ccm cco cct ccx ce- cec cee cei cem ceo cet cex ci- cic cie cii cim cio cit cix cmc cme cmi cmm cmo cmt cmx co- coc coe coi com coo cot cox ctc cte cti ctm cto ctt ctx cxc cxi cxo cxt cxx ec- ecc ece eci ecm eco ect ecx eec eee eem eeo eet eex eic eie eii eim eio eit eix em- emc eme emi emm emo emt emx eo- eoc eoe eoi eom eoo eot etc ete eti etm eto ett etx ex- exc exe exi exo ext exx icc ice ici icm ico ict ie- iec iee iei iem iet iex iic iie iii iim iio iit iix im- imc ime imi imm imo imt imx io- ioc ioe ioi iom ioo iot itc ite iti itm ito itt itx ixc ixe ixi m-o mc- mcc mce mci mcm mco mct mcx mec mee mei mem meo met mex mi- mic mie mii mim mio mit mix mmc mme mmi mmm mmo mmt mmx moc moe moi mom moo mot mox mtc mte mti mtm mto mtt mtx mxc mxi o-i oc- occ oci ocm oco oct ocx oec oee oei oem oeo oet oex oic oie oii oim oio oit om- omc ome omi omm omo omt omx oo- ooc ooi oom ooo oot oox ot- otc ote oti otm oto ott ox- oxc oxi oxo oxt oxx t-x tcc tce tci tcm tco tct tcx te- tec tee tei tem teo tet tex tic tie tii tim tio tit tix tmc tme tmi tmm tmo tmt tmx to- toc toe toi tom too tot tox ttc tte tti ttm tto ttt ttx txe txi txt xci xcx xee xem xet xex xic xie xii xio xit xix xmc xmi xmm xmo xmt xmx xoc xoi xom xoo xot xox xtc xti xtm xtx xxi xxo xxx