-ic a-a a-c a-i aaa aac aad aai aao aap aar aax ac- aca acc acd aci aco acp acr acx ad- ada adc add adi ado adp adr adx ai- aia aic aid aii aio aip air aix aoa aoc aod aoi aoo aop aor aox ap- apa apc apd api apo app apr apx ar- ara arc ard ari aro arp arr arx ax- axa axi axo axp axr axx c-- caa cac cad cai cao cap car cax cca ccc ccd cci cco ccp ccr ccx cda cdc cdd cdi cdo cdp cdr cdx ci- cia cic cid cii cio cip cir cix co- coa coc cod coi coo cop cor cox cpa cpc cpd cpi cpo cpp cpr cpx cra crc crd cri cro crp crr crx cxc cxi cxo cxp cxr cxx daa dac dad dai dao dap dar dax dca dcc dcd dci dco dcp dcr dcx dda ddc ddd ddi ddo ddp ddr ddx di- dia dic did dii dio dip dir dix doa doc dod doi doo dop dor dox dpa dpc dpd dpi dpo dpp dpr dra drc drd dri dro drp drr drx dxc dxd dxi dxo dxp dxr dxx i-d ia- iaa iac iad iai iao iap iar ica icc icd ici ico icp icr ida idc idd idi ido idp idr idx iia iic iid iii iio iip iir iix io- ioa ioc iod ioi ioo iop ior ipa ipc ipd ipi ipo ipp ipr ipx ir- ira irc ird iri iro irp irr irx ixc ixi o-i oaa oac oad oai oao oap oar oax oc- oca occ ocd oci oco ocp ocr ocx oda odc odd odi odo odp odr oia oic oid oii oio oip oir oo- ooa ooc ood ooi ooo oop oor oox op- opa opc opd opi opo opp opr opx or- ora orc ord ori oro orp orr orx ox- oxa oxc oxi oxo oxx p-p paa pac pad pai pao pap par pax pca pcc pcd pci pco pcp pcr pcx pda pdc pdd pdi pdo pdp pdr pdx pia pic pid pii pio pip pir pix poa poc pod poi poo pop por pox ppa ppc ppd ppi ppo ppp ppr ppx pra prc prd pri pro prp prr prx pxc pxr ra- raa rac rad rai rao rap rar rax rca rcc rcd rci rco rcp rcr rcx rda rdc rdd rdi rdo rdp rdr rdx ria ric rid rii rio rip rir rix roa roc rod roi roo rop ror rox rpa rpc rpd rpi rpo rpp rpr rpx rra rrc rrd rri rrp rrr rxp rxr xaa xac xad xap xar xcd xci xcp xcr xcx xda xdc xdi xdr xia xic xii xio xix xoa xoc xod xoi xoo xop xor xox xpa xpc xpd xpo xpp xrc xrd xrx xxi xxo xxp xxx