-ic c-- ccc ccd cci ccm ccx cdc cdd cdi cdm cdx ci- cic cid cii cim cix cmc cmd cmi cmm cmx cxc cxi cxx dcc dcd dci dcm dcx ddc ddd ddi ddm ddx di- dic did dii dim dix dmc dmd dmi dmm dmx dxc dxd dxi dxx i-d icc icd ici icm idc idd idi idm idx iic iid iii iim iix im- imc imd imi imm imx ixc ixi mc- mcc mcd mci mcm mcx mdc mdd mdi mdm mdx mi- mic mid mii mim mix mmc mmd mmi mmm mmx mxc mxd mxi xcd xci xcx xdc xdi xdm xic xii xix xmc xmd xmi xmm xmx xxi xxx