-ic c-- ccc ccf cci cco ccp ccr cct cfc cff cfi cfo cfp cfr cft ci- cic cif cii cio cip cir cit co- coc cof coi coo cop cor cot cpc cpf cpi cpo cpp cpr cpt crc crf cri cro crp crr crt ctc ctf cti cto ctp ctr ctt fcc fcf fci fco fcp fcr fct ffc fff ffi ffo ffp ffr fft fic fif fii fip fir fit foc fof foi foo fop for fot fpc fpi fpo fpp fpr fpt frc frf fri fro frp frr frt ftc ftf fti fto ftp ftr ftt i-f icc icf ici ico icp icr ict ifc iff ifi ifo ifp ifr ift iic iif iii iio iip iir iit io- ioc iof ioi ioo iop ior iot ipc ipf ipi ipo ipp ipr ipt ir- irc irf iri iro irp irr irt itc itf iti ito itp itt o-i oc- occ ocf oci oco ocp ocr oct of- ofc off ofi ofo ofp ofr oft oic oif oii oio oip oir oit oo- ooc oof ooi ooo oop oor oot op- opc opf opi opo opp opr opt or- orc orf ori oro orp orr ort ot- otc otf oti oto otp otr ott p-p pcc pcf pci pco pcp pcr pct pfc pff pfi pfo pfp pfr pft pic pif pii pio pip pir pit poc pof poi poo pop por pot ppc ppf ppi ppo ppp ppr ppt prc prf pri pro prp prr prt pt- ptc ptf pti pto ptp ptr ptt rcc rcf rci rco rcp rcr rct rfc rff rfi rfo rfp rfr rft ric rif rii rio rip rir rit roc rof roi roo rop ror rot rpc rpf rpi rpo rpp rpr rpt rrc rrf rri rrp rrr rrt rtc rtf rti rto rtp rtr rtt tcc tcf tci tco tcp tcr tct tfc tff tfi tfo tfp tfr tft tic tif tii tio tip tir tit to- toc tof toi too top tor tot tpc tpf tpi tpo tpp tpr tpt trc trf tri tro trp trr trt ttc ttf tti tto ttp ttr ttt