c-- ccc cck cco ccr ccs cct ccu ckc cko cks ckt co- coc cok coo cor cos cot cou crc crk cro crr crs crt cru csc csk cso csr css cst csu ctc ctk cto ctr cts ctt ctu cuc cuk cuo cur cus cut cuu k-t kcc kck kcr kcs kct kcu kkc kkk kkr kks kkt kku koc kok koo kor kos kot kou krc krk kro krr krs krt kru ksc ksk kso ksr kss kst ksu ktc ktk kto ktr kts ktt ktu kuc kuk kur kus kut kuu oc- occ ock oco ocr ocs oct ocu okc okk oko okr oks oku oo- ooc ook ooo oor oos oot or- orc ork oro orr ors ort oru os- osc osk oso osr oss ost osu ot- otc otk oto otr ots ott otu ou- ouc ouk ouo our ous out rcc rco rcr rcs rct rcu rkc rkk rko rks rkt rku roc rok roo ror ros rot rou rrc rrk rrr rrs rrt rru rsc rsk rso rsr rss rst rsu rtc rtk rto rtr rts rtt rtu ruc ruk ruo rur rus rut ruu scc sck sco scr scs sct scu sk- skc skk sko skr sks skt sku soc sok soo sor sos sot sou sr- src srk sro srr srs srt ss- ssc ssk sso ssr sss sst ssu stc stk sto str sts stt stu suc suk suo sur sus sut suu tcc tck tco tcr tcs tct tcu tkc tkk tko tkr tks tkt to- toc tok too tor tos tot tou trc trk tro trr trs trt tru tsc tsk tso tsr tss tst tsu ttc ttk tto ttr tts ttt ttu tuc tuk tuo tur tus tut tuu ucc uck uco ucr ucs uct ucu ukc ukk ukr uku uoc uok uoo uor uos uot ur- urc urk uro urr urs urt uru usc usk uso usr uss ust usu utc utk uto utr uts utt utu uuc uur uus uut uuu

-ous cccc cccs cccu ccoc ccrc ccrs ccrt ccss ccst cctc cctt ccuc ccus ccut ckck ckco ckcs ckoc ckoo ckor ckos ckot ckrc ckso ckst ckts cock coco coct cocu cok- coko cook coos coot cor- corc cork coro corr cors cort cosc coso coss cost cotc coto cots cott cotu couk cour cous cout crcc crcr crkc croc crok croo cror crot crrt crss crst crtc crts cruk crus crut cscc csco cscr cscs csks csor csos csot csrc csrs cssr cstc csto cstr csts csur csus ctor ctos ctot ctrc ctrs ctsc ctss ctsu ctts cucc cuck cuk- curo curr curs curt cusk cuso cuss cust cusu cut- cutc cuto cuts cutt k-os kccc kcck kccr kcct kccu kckc kckk kcko kckr kcor kcos kcot kcou kcrc kcro kcrr kcrs kcrt kcru kcsc kcsr kcss kcst kcsu kctc kcto kctu kcuk kkck kkco kkcr kkcs kkct kkkk kkoo kkor kkot kkrc kkrk kkro kkrr kkrs kkrt kksr kkss kkst kksu kktc kktk kkts kktu kkus kkut kkuu kock kocs koct kokc kokk koko kokr koks koku kooc kook kooo koor koos koot koou korc kork koro korr kors kort koru kos- kosc koso kosr koss kost kosu kotc kotk koto kotr kots kott kotu kour kous kout kouu krcc krco krcs krcu krkc krkk krko krkr krks krku kroc krok kroo kror kros krrc krrk krro krrr krrs krrt krsc krsk krsr krss krst krsu krtc krtk krto krtr krts kruc kruk krur ksck ksco kscr kscs kscu kskk ksko kskr ksks ksku ksoc ksok ksoo ksor ksos ksou ksro ksrr ksrs ksrt ksso kssr ksss ksst kssu kstc kstk ksto kstr ksts kstt kstu ksut ksuu ktcc ktck ktco ktcr ktcs ktkc ktkk ktko ktkr ktks ktkt ktku ktoc ktok ktoo ktor ktot ktrc ktrk ktro ktrr ktrs ktrt ktru ktsc ktso ktsr ktst ktsu kttc kttk ktto kttr ktts kttt kttu ktuc kucc kuco kucr kukk kuks kuku kuok kuoo kuos kurk kuro kurr kurs kurt kuru kusc kuso kust kusu kuto kutr kuts kutt kutu kuuk kuur kuuu occc occt ocks ocos ocro ocrr ocrs oct- octo octs ocur okcu okko okok okor okot okro okso okto okur okus oocr ooku oooo ooos oort oost oots oous orco orcs orko oro- orok oror oros orot orro orrs orsk orso orsu ortc orto orts orus oscc osco osku osoo osor osos osro osso ossu ostc ostr osts oto- otok otoo otor otos otro otrs otso otsu otto otts ottu otur otus oucc our- ouro ours ourt oust out- outo outs ouu- rccc rccs rcos rcsc rcss rctc rcts rkos rkss rkts rocc rock roco rocs rokk roko rokr roks roku rook roor roos root rorc rork roro rort roru rosc roso ross rost rotc rotk roto rotr rots rott rouk rous rout rrrr rscc rscs rsos rsts rstu rtcc rtss rtts ruck ruct rukk ruku ruok rurc ruro rurs ruru rusk ruso russ rust rusu ruto ruts rutt rutu s-os sccc sccs scct sck- scok scoo scor scot scr- scrc scrs scsc scso scsr scst scsu sctc scto sctr scts scur scut skor skot skrt skss skur skut sock soco socr socs sokk soko soku sook soor soos soot soro sorr sors sort soru soso soss sost sotc sotk soto sots sotu souk sour sous sout srcc srct sros srtr sscc sscs ssoc ssot ssrc ssrs sssc ssss sstc ssts stcc stcs stcu stks stok stoo stor stos stot stou strc strk stro strs stru stss sttc sttr stuc stuk stur stus stut suc- succ suck sucr sucs suks suku suor suos sur- surc suro surr surs surt suru sus- susk suso suss sust susu suto sutu suus tccc tccu tcos tctc tcts tkos tkts tock toco toko toku took toor toos toot torc tork toro torr tors tort toru tosc tosk toso toss tost tosu totc toto totr tots tott touk tour tous tout trcc troc troo tros trot trou trst trtc trtr truc truk trus trut