-ic c-- ccc ccd ccf cci cck cco ccr ccs ccu cdc cdd cdf cdi cdk cdo cdr cds cdu cfc cfd cff cfi cfk cfo cfr cfs cfu ci- cic cid cif cii cik cio cir cis ciu ckc ckd cki cko cks co- coc cod cof coi cok coo cor cos cou crc crd crf cri crk cro crr crs cru csc csd csf csi csk cso csr css csu cuc cud cuf cui cuk cuo cur cus cuu dcc dcd dcf dci dck dco dcr dcs dcu ddc ddd ddf ddi ddk ddo ddr dds ddu dfc dfd dff dfi dfk dfo dfr dfs dfu di- dic did dif dii dik dio dir dis diu dkc dki dkk dko dkr dks dku doc dod dof doi dok doo dor dos dou drc drd dri drk dro drr drs dru dsc dsd dsf dsi dsk dso dsr dss dsu duc dud duf dui duk duo dur dus fcc fcd fcf fci fck fco fcr fcs fcu fdc fdd fdf fdi fdk fdo fdr fds fdu ffc ffd fff ffi ffk ffo ffr ffs ffu fic fid fif fii fik fir fis fiu fkc fkf fki fkk foc fof foi fok foo for fos fou frc frd frf fri frk fro frr frs fru fsc fsd fsf fsi fsk fso fsr fss fsu fud fuf fui fuk fuo fur fus fuu i-d i-f icc icd icf ici ick ico icr ics icu idc idd idf idi idk ido idr ids idu ifc ifd iff ifi ifo ifr ifs ifu iic iid iif iii iio iir iis iiu ikc ikf iki ikk iko ikr iks iku io- ioc iod iof ioi ioo ior ios iou ir- irc ird irf iri irk iro irr irs iru is- isc isd isf isi isk iso isr iss isu iu- iuc iud iui iur ius kcc kcd kci kck kcr kcs kcu kdc kdf kdk kdo kdr kds kdu kfc kfd kff kfi kfo kfs kfu kic kid kif kii kik kio kir kis kiu kkc kki kkk kkr kks kku koc kod kof koi kok koo kor kos kou krc krd krf kri krk kro krr krs kru ksc ksd ksf ksi ksk kso ksr kss ksu kuc kud kui kuk kur kus kuu o-i oc- occ ocd ocf oci ock oco ocr ocs ocu odc odd odf odi odo odr ods odu of- ofc ofd off ofi ofo ofr ofs ofu oic oid oif oii oik oio oir ois oiu okc okd oki okk oko okr oks oku oo- ooc ood oof ooi ook ooo oor oos or- orc ord orf ori ork oro orr ors oru os- osc osd osf osi osk oso osr oss osu ou- ouc oud ouf oui ouk ouo our ous rcc rcd rcf rci rco rcr rcs rcu rdc rdd rdf rdi rdo rdr rds rdu rfc rfd rff rfi rfk rfo rfr rfs rfu ric rid rif rii rik rio rir ris rkc rkf rkk rko rks rku roc rod rof roi rok roo ror ros rou rrc rrd rrf rri rrk rrr rrs rru rsc rsd rsf rsi rsk rso rsr rss rsu ruc rud ruf rui ruk ruo rur rus ruu scc scd scf sci sck sco scr scs scu sdc sdd sdf sdi sdk sdo sdr sds sdu sfc sfd sff sfi sfk sfo sfr sfs sfu sic sid sif sii sik sio sir sis siu sk- skc skd skf ski skk sko skr sks sku soc sod sof soi sok soo sor sos sou sr- src srd srf sri srk sro srr srs ss- ssc ssd ssf ssi ssk sso ssr sss ssu suc sud suf sui suk suo sur sus suu ucc ucd ucf uci uck uco ucr ucs ucu udc udd udf udi udk udo udr uds udu ufc ufd uff ufi ufo ufr ufs ufu uic uid uif uii uio uir uis uiu ukc ukf uki ukk ukr uku uoc uod uok uoo uor uos ur- urc urd urf uri urk uro urr urs uru usc usd usf usi usk uso usr uss usu uuc uur uus uuu