-ic c-- ccc ccd ccf cci cco ccp ccr cct cdc cdd cdf cdi cdo cdp cdr cdt cfc cfd cff cfi cfo cfp cfr cft ci- cic cid cif cii cio cip cir cit co- coc cod cof coi coo cop cor cot cpc cpd cpf cpi cpo cpp cpr cpt crc crd crf cri cro crp crr crt ctc ctd ctf cti cto ctp ctr ctt dcc dcd dcf dci dco dcp dcr dct ddc ddd ddf ddi ddo ddp ddr ddt dfc dfd dff dfi dfo dfp dfr dft di- dic did dif dii dio dip dir dit doc dod dof doi doo dop dor dot dpc dpd dpf dpi dpo dpp dpr dpt drc drd dri dro drp drr drt dtc dtd dtf dti dto dtp dtr dtt fcc fcd fcf fci fco fcp fcr fct fdc fdd fdf fdi fdo fdp fdr fdt ffc ffd fff ffi ffo ffp ffr fft fic fid fif fii fip fir fit foc fof foi foo fop for fot fpc fpd fpi fpo fpp fpr fpt frc frd frf fri fro frp frr frt ftc ftd ftf fti fto ftp ftr ftt i-d i-f icc icd icf ici ico icp icr ict idc idd idf idi ido idp idr idt ifc ifd iff ifi ifo ifp ifr ift iic iid iif iii iio iip iir iit io- ioc iod iof ioi ioo iop ior iot ipc ipd ipf ipi ipo ipp ipr ipt ir- irc ird irf iri iro irp irr irt itc itd itf iti ito itp itt o-i oc- occ ocd ocf oci oco ocp ocr oct odc odd odf odi odo odp odr odt of- ofc ofd off ofi ofo ofp ofr oft oic oid oif oii oio oip oir oit oo- ooc ood oof ooi ooo oop oor oot op- opc opd opf opi opo opp opr opt or- orc ord orf ori oro orp orr ort ot- otc otd otf oti oto otp otr ott p-p pcc pcd pcf pci pco pcp pcr pct pdc pdd pdf pdi pdo pdp pdr pdt pfc pfd pff pfi pfo pfp pfr pft pic pid pif pii pio pip pir pit poc pod pof poi poo pop por pot ppc ppd ppf ppi ppo ppp ppr ppt prc prd prf pri pro prp prr prt pt- ptc ptd ptf pti pto ptp ptr ptt rcc rcd rcf rci rco rcp rcr rct rdc rdd rdf rdi rdo rdp rdr rdt rfc rfd rff rfi rfo rfp rfr rft ric rid rif rii rio rip rir rit roc rod rof roi roo rop ror rot rpc rpd rpf rpi rpo rpp rpr rpt rrc rrd rrf rri rrp rrr rrt rtc rtd rtf rti rto rtp rtr rtt tcc tcd tcf tci tco tcp tcr tct tdc tdd tdf tdi tdo tdp tdr tdt tfc tfd tff tfi tfo tfp tfr tft tic tid tif tii tio tip tir tit to- toc tod tof toi too top tor tot tpc tpd tpf tpi tpo tpp tpr tpt trc trd trf tri tro trp trr trt ttc ttd ttf tti tto ttp ttr ttt