c-- ccc ccf cck ccn cco ccr ccs ccu cfc cff cfk cfn cfo cfr cfs cfu ckc cko cks cn- cnc cnf cnn cno cnr cns cnu co- coc cof cok con coo cor cos cou crc crf crk crn cro crr crs cru csc csf csk csn cso csr css csu cuc cuf cuk cun cuo cur cus cuu fcc fcf fck fcn fco fcr fcs fcu ffc fff ffk ffn ffo ffr ffs ffu fkc fkf fkk fnc fnf fnk fnn fnr fns fnu foc fof fok fon foo for fos fou frc frf frk frn fro frr frs fru fsc fsf fsk fsn fso fsr fss fsu fuf fuk fun fuo fur fus fuu kcc kck kcn kcr kcs kcu kfc kff kfo kfs kfu kkc kkk kkn kkr kks kku kn- knc knf knk knn kno knr knu koc kof kok kon koo kor kos kou krc krf krk krn kro krr krs kru ksc ksf ksk ksn kso ksr kss ksu kuc kuk kun kur kus kuu ncc ncf nck ncn nco ncr ncs ncu nfc nff nfk nfn nfo nfr nfs nfu nkc nkf nkk nkn nko nkr nks nku nnc nnf nnk nnn nno nns nnu no- noc nof nok non noo nor nos nou nrc nrf nrk nrn nro nrr nrs nru nsc nsf nsk nsn nso nsr nss nsu nuc nuk nun nuo nur nus nuu oc- occ ocf ock ocn oco ocr ocs ocu of- ofc off ofn ofo ofr ofs ofu okc okk oko okr oks oku on- onc onf onk onn ono onr ons onu oo- ooc oof ook oon ooo oor oos or- orc orf ork orn oro orr ors oru os- osc osf osk osn oso osr oss osu ou- ouc ouf ouk oun ouo our ous rcc rcf rcn rco rcr rcs rcu rfc rff rfk rfn rfo rfr rfs rfu rkc rkf rkk rko rks rku rnc rnn rno rnr rns rnu roc rof rok ron roo ror ros rou rrc rrf rrk rrn rrr rrs rru rsc rsf rsk rsn rso rsr rss rsu ruc ruf ruk run ruo rur rus ruu scc scf sck scn sco scr scs scu sfc sff sfk sfn sfo sfr sfs sfu sk- skc skf skk sko skr sks sku snc snf snk snn sno snr sns snu soc sof sok son soo sor sos sou sr- src srf srk srn sro srr srs ss- ssc ssf ssk ssn sso ssr sss ssu suc suf suk sun suo sur sus suu ucc ucf uck ucn uco ucr ucs ucu ufc uff ufn ufo ufr ufs ufu ukc ukf ukk ukn ukr uku un- unc unf unk unn uno unr uns unu uoc uok uon uoo uor uos ur- urc urf urk urn uro urr urs uru usc usf usk usn uso usr uss usu uuc uun uur uus uuu