-ic a-a a-c a-i aaa aac aad aai aar aax ac- aca acc acd aci acr acx ad- ada adc add adi adr adx ai- aia aic aid aii air aix ar- ara arc ard ari arr arx ax- axa axi axr axx c-- caa cac cad cai car cax cca ccc ccd cci ccr ccx cda cdc cdd cdi cdr cdx ci- cia cic cid cii cir cix cra crc crd cri crr crx cxc cxi cxr cxx daa dac dad dai dar dax dca dcc dcd dci dcr dcx dda ddc ddd ddi ddr ddx di- dia dic did dii dir dix dra drc drd dri drr drx dxc dxd dxi dxr dxx i-d ia- iaa iac iad iai iar ica icc icd ici icr ida idc idd idi idr idx iia iic iid iii iir iix ir- ira irc ird iri irr irx ixc ixi ra- raa rac rad rai rar rax rca rcc rcd rci rcr rcx rda rdc rdd rdi rdr rdx ria ric rid rii rir rix rra rrc rrd rri rrr rxr xaa xac xad xar xcd xci xcr xcx xda xdc xdi xdr xia xic xii xix xrc xrd xrx xxi xxx