-ic a-a a-c a-i a-t aaa aac aad aai aar aat aax ac- aca acc acd aci acr act acx ad- ada adc add adi adr adt adx ai- aia aic aid aii air ait aix ar- ara arc ard ari arr art arx at- ata atc atd ati atr att atx ax- axa axi axr axt axx c-- caa cac cad cai car cat cax cca ccc ccd cci ccr cct ccx cda cdc cdd cdi cdr cdt cdx ci- cia cic cid cii cir cit cix cra crc crd cri crr crt crx cta ctc ctd cti ctr ctt ctx cxc cxi cxr cxt cxx daa dac dad dai dar dat dax dca dcc dcd dci dcr dct dcx dda ddc ddd ddi ddr ddt ddx di- dia dic did dii dir dit dix dra drc drd dri drr drt drx dta dtc dtd dti dtr dtt dtx dxc dxd dxi dxr dxt dxx i-d ia- iaa iac iad iai iar iat ica icc icd ici icr ict ida idc idd idi idr idt idx iia iic iid iii iir iit iix ir- ira irc ird iri irr irt irx ita itc itd iti itt itx ixc ixi ra- raa rac rad rai rar rat rax rca rcc rcd rci rcr rct rcx rda rdc rdd rdi rdr rdt rdx ria ric rid rii rir rit rix rra rrc rrd rri rrr rrt rta rtc rtd rti rtr rtt rtx rxr t-x taa tac tad tai tar tat tax tca tcc tcd tci tcr tct tcx tda tdc tdd tdi tdr tdt tdx tia tic tid tii tir tit tix tra trc trd tri trr trt trx tta ttc ttd tti ttr ttt ttx txi txt xaa xac xad xar xat xcd xci xcr xcx xda xdc xdi xdr xdt xia xic xii xit xix xrc xrd xrt xrx xtc xti xtr xtx xxi xxx