-ic a-a a-c a-i a-t aaa aac aaf aai aao aar aat aax ac- aca acc acf aci aco acr act acx af- afa afc aff afi afo afr aft afx ai- aia aic aif aii aio air ait aix aoa aoc aof aoi aoo aor aot aox ar- ara arc arf ari aro arr art arx at- ata atc atf ati ato atr att atx ax- axa axi axo axr axt axx c-- caa cac caf cai cao car cat cax cca ccc ccf cci cco ccr cct ccx cfa cfc cff cfi cfo cfr cft cfx ci- cia cic cif cii cio cir cit cix co- coa coc cof coi coo cor cot cox cra crc crf cri cro crr crt crx cta ctc ctf cti cto ctr ctt ctx cxc cxf cxi cxo cxr cxt cxx faa fac faf fai fao far fat fax fca fcc fcf fci fco fcr fct fcx ffa ffc fff ffi ffo ffr fft ffx fia fic fif fii fir fit fix foa foc fof foi foo for fot fox fra frc frf fri fro frr frt fta ftc ftf fti fto ftr ftt ftx fxi fxr fxt fxx i-f ia- iaa iac iaf iai iao iar iat ica icc icf ici ico icr ict ifa ifc iff ifi ifo ifr ift ifx iia iic iif iii iio iir iit iix io- ioa ioc iof ioi ioo ior iot ir- ira irc irf iri iro irr irt irx ita itc itf iti ito itt itx ixc ixi o-i oaa oac oaf oai oao oar oat oax oc- oca occ ocf oci oco ocr oct ocx of- ofa ofc off ofi ofo ofr oft ofx oia oic oif oii oio oir oit oo- ooa ooc oof ooi ooo oor oot oox or- ora orc orf ori oro orr ort orx ot- ota otc otf oti oto otr ott ox- oxa oxc oxf oxi oxo oxt oxx ra- raa rac raf rai rao rar rat rax rca rcc rcf rci rco rcr rct rcx rfa rfc rff rfi rfo rfr rft ria ric rif rii rio rir rit rix roa roc rof roi roo ror rot rox rra rrc rrf rri rrr rrt rta rtc rtf rti rto rtr rtt rtx rxr t-x taa tac taf tai tao tar tat tax tca tcc tcf tci tco tcr tct tcx tfa tfc tff tfi tfo tfr tft tfx tia tic tif tii tio tir tit tix to- toa toc tof toi too tor tot tox tra trc trf tri tro trr trt trx tta ttc ttf tti tto ttr ttt ttx txf txi txt xaa xac xaf xar xat xcf xci xcr xcx xfa xft xfx xia xic xii xio xit xix xoa xoc xof xoi xoo xor xot xox xrc xrf xrt xrx xtc xtf xti xtr xtx xxi xxo xxx