c-- ccc cce ccg cck ccn cco ccs cct ce- cec cee ceg cek cen ceo ces cet cgc cge cgg cgn cgo cgs cgt ckc cko cks ckt cn- cnc cne cng cnn cno cns cnt co- coc coe cog cok con coo cos cot csc cse csg csk csn cso css cst ctc cte ctg ctk ctn cto cts ctt ec- ecc ece ecg eck ecn eco ecs ect eec eee eeg eek een eeo ees eet egc ege egg egn ego egs egt ekc eke ekg eko eks ekt en- enc ene eng enk enn eno ens ent eo- eoc eoe eog eok eon eoo eos eot es- esc ese esg esk esn eso ess est etc ete etg etk etn eto ets ett gcc gce gcg gck gcn gco gcs gct ge- gec gee geg gek gen geo ges get ggc ggg ggn ggo ggs ggt gkn gko gks gkt gnc gne gnn gno gns gnt goc goe gog gok gon goo gos got gsc gse gsg gsk gsn gso gss gst gtc gte gtg gtk gtn gto gts gtt k-t kcc kce kcg kck kcn kcs kct ke- kec kee keg kek ken keo kes ket kgc kgo kgs kkc kke kkk kkn kks kkt kn- knc kne kng knk knn kno knt koc koe kog kok kon koo kos kot ksc kse ksg ksk ksn kso kss kst ktc kte ktg ktk ktn kto kts ktt ncc nce ncg nck ncn nco ncs nct ne- nec nee neg nek nen neo nes net ngc nge ngg ngk ngn ngo ngs ngt nkc nke nkk nkn nko nks nkt nnc nne nng nnk nnn nno nns nnt no- noc noe nog nok non noo nos not nsc nse nsg nsk nsn nso nss nst ntc nte ntg ntk ntn nto nts ntt oc- occ ocg ock ocn oco ocs oct oec oee oeg oen oeo oes oet ogc oge ogg ogn ogo ogs ogt okc oke okg okk oko oks on- onc one ong onk onn ono ons ont oo- ooc oog ook oon ooo oos oot os- osc ose osg osk osn oso oss ost ot- otc ote otg otk otn oto ots ott scc sce scg sck scn sco scs sct se- sec see seg sek sen seo ses set sgc sge sgg sgk sgn sgo sgs sgt sk- skc ske skg skk sko sks skt snc sne sng snk snn sno sns snt soc soe sog sok son soo sos sot ss- ssc sse ssg ssk ssn sso sss sst stc ste stg stk stn sto sts stt tcc tce tcg tck tcn tco tcs tct te- tec tee teg tek ten teo tes tet tgc tge tgg tgk tgn tgo tgs tgt tkc tke tkg tkk tko tks tkt tnc tne tng tnk tnn tno tns tnt to- toc toe tog tok ton too tos tot tsc tse tsg tsk tsn tso tss tst ttc tte ttg ttk ttn tto tts ttt