-ic c-- ccc cce cci ccm ccx ce- cec cee cei cem cex ci- cic cie cii cim cix cmc cme cmi cmm cmx cxc cxi cxx ec- ecc ece eci ecm ecx eec eee eem eex eic eie eii eim eix em- emc eme emi emm emx ex- exc exe exi exx icc ice ici icm ie- iec iee iei iem iex iic iie iii iim iix im- imc ime imi imm imx ixc ixe ixi mc- mcc mce mci mcm mcx mec mee mei mem mex mi- mic mie mii mim mix mmc mme mmi mmm mmx mxc mxi xci xcx xee xem xex xic xie xii xix xmc xmi xmm xmx xxi xxx