-ic c-- ccc ccd ccf cci cck cco ccr cct cdc cdd cdf cdi cdk cdo cdr cdt cfc cfd cff cfi cfk cfo cfr cft ci- cic cid cif cii cik cio cir cit ckc ckd cki cko ckt co- coc cod cof coi cok coo cor cot crc crd crf cri crk cro crr crt ctc ctd ctf cti ctk cto ctr ctt dcc dcd dcf dci dck dco dcr dct ddc ddd ddf ddi ddk ddo ddr ddt dfc dfd dff dfi dfk dfo dfr dft di- dic did dif dii dik dio dir dit dkc dki dkk dko dkr dkt doc dod dof doi dok doo dor dot drc drd dri drk dro drr drt dtc dtd dtf dti dtk dto dtr dtt fcc fcd fcf fci fck fco fcr fct fdc fdd fdf fdi fdk fdo fdr fdt ffc ffd fff ffi ffk ffo ffr fft fic fid fif fii fik fir fit fkc fkf fki fkk fkt foc fof foi fok foo for fot frc frd frf fri frk fro frr frt ftc ftd ftf fti ftk fto ftr ftt i-d i-f icc icd icf ici ick ico icr ict idc idd idf idi idk ido idr idt ifc ifd iff ifi ifo ifr ift iic iid iif iii iio iir iit ikc ikf iki ikk iko ikr ikt io- ioc iod iof ioi ioo ior iot ir- irc ird irf iri irk iro irr irt itc itd itf iti itk ito itt k-t kcc kcd kci kck kcr kct kdc kdf kdk kdo kdr kdt kfc kfd kff kfi kfo kic kid kif kii kik kio kir kit kkc kki kkk kkr kkt koc kod kof koi kok koo kor kot krc krd krf kri krk kro krr krt ktc ktf ktk kto ktr ktt o-i oc- occ ocd ocf oci ock oco ocr oct odc odd odf odi odo odr odt of- ofc ofd off ofi ofo ofr oft oic oid oif oii oik oio oir oit okc okd oki okk oko okr oo- ooc ood oof ooi ook ooo oor oot or- orc ord orf ori ork oro orr ort ot- otc otd otf oti otk oto otr ott rcc rcd rcf rci rco rcr rct rdc rdd rdf rdi rdo rdr rdt rfc rfd rff rfi rfk rfo rfr rft ric rid rif rii rik rio rir rit rkc rkf rkk rko rkt roc rod rof roi rok roo ror rot rrc rrd rrf rri rrk rrr rrt rtc rtd rtf rti rtk rto rtr rtt tcc tcd tcf tci tck tco tcr tct tdc tdd tdf tdi tdk tdo tdr tdt tfc tfd tff tfi tfk tfo tfr tft tic tid tif tii tik tio tir tit tkc tkk tko tkr tkt to- toc tod tof toi tok too tor tot trc trd trf tri trk tro trr trt ttc ttd ttf tti ttk tto ttr ttt