-ic a-a a-c a-i aaa aac aad aai aao aar aax ac- aca acc acd aci aco acr acx ad- ada adc add adi ado adr adx ai- aia aic aid aii aio air aix aoa aoc aod aoi aoo aor aox ar- ara arc ard ari aro arr arx ax- axa axi axo axr axx c-- caa cac cad cai cao car cax cca ccc ccd cci cco ccr ccx cda cdc cdd cdi cdo cdr cdx ci- cia cic cid cii cio cir cix co- coa coc cod coi coo cor cox cra crc crd cri cro crr crx cxc cxi cxo cxr cxx daa dac dad dai dao dar dax dca dcc dcd dci dco dcr dcx dda ddc ddd ddi ddo ddr ddx di- dia dic did dii dio dir dix doa doc dod doi doo dor dox dra drc drd dri dro drr drx dxc dxd dxi dxo dxr dxx i-d ia- iaa iac iad iai iao iar ica icc icd ici ico icr ida idc idd idi ido idr idx iia iic iid iii iio iir iix io- ioa ioc iod ioi ioo ior ir- ira irc ird iri iro irr irx ixc ixi o-i oaa oac oad oai oao oar oax oc- oca occ ocd oci oco ocr ocx oda odc odd odi odo odr oia oic oid oii oio oir oo- ooa ooc ood ooi ooo oor oox or- ora orc ord ori oro orr orx ox- oxa oxc oxi oxo oxx ra- raa rac rad rai rao rar rax rca rcc rcd rci rco rcr rcx rda rdc rdd rdi rdo rdr rdx ria ric rid rii rio rir rix roa roc rod roi roo ror rox rra rrc rrd rri rrr rxr xaa xac xad xar xcd xci xcr xcx xda xdc xdi xdr xia xic xii xio xix xoa xoc xod xoi xoo xor xox xrc xrd xrx xxi xxo xxx