-er c-- ccc cce ccf cck ccn cco ccr cct ccu ce- cec cee cef cek cen ceo cer cet ceu cfc cfe cff cfk cfn cfo cfr cft cfu ckc cko ckt cn- cnc cne cnf cnn cno cnr cnt cnu co- coc coe cof cok con coo cor cot cou crc cre crf crk crn cro crr crt cru ctc cte ctf ctk ctn cto ctr ctt ctu cuc cue cuf cuk cun cuo cur cut cuu ec- ecc ece ecf eck ecn eco ecr ect ecu eec eee eef eek een eeo eer eet ef- efc efe eff efo efr eft ekc eke ekf eko ekr ekt eku en- enc ene enf enk enn eno enr ent enu eo- eoc eoe eof eok eon eoo eor eot eou erc ere erf erk ern ero err ert eru etc ete etf etk etn eto etr ett etu eu- euc eue euf eun eur eut fcc fce fcf fck fcn fco fcr fct fcu fec fee fef fek fen feo fer fet feu ffc ffe fff ffk ffn ffo ffr fft ffu fkc fkf fkk fkt fnc fne fnf fnk fnn fnr fnt fnu foc foe fof fok fon foo for fot fou frc fre frf frk frn fro frr frt fru ftc fte ftf ftk ftn fto ftr ftt ftu fue fuf fuk fun fuo fur fut fuu k-t kcc kce kck kcn kcr kct kcu ke- kec kee kef kek ken keo ker ket kfc kff kfo kfu kkc kke kkk kkn kkr kkt kku kn- knc kne knf knk knn kno knr knt knu koc koe kof kok kon koo kor kot kou krc krf krk krn kro krr krt kru ktc kte ktf ktk ktn kto ktr ktt ktu kuc kue kuk kun kur kut kuu ncc nce ncf nck ncn nco ncr nct ncu ne- nec nee nef nek nen neo ner net neu nfc nfe nff nfk nfn nfo nfr nft nfu nkc nke nkf nkk nkn nko nkr nkt nku nnc nne nnf nnk nnn nno nnt nnu no- noc noe nof nok non noo nor not nou nrc nre nrf nrk nrn nro nrr nrt nru ntc nte ntf ntk ntn nto ntr ntt ntu nuc nue nuk nun nuo nur nut nuu oc- occ ocf ock ocn oco ocr oct ocu oec oee oef oen oeo oer oet of- ofc ofe off ofn ofo ofr oft ofu okc oke okk oko okr oku on- onc one onf onk onn ono onr ont onu oo- ooc oof ook oon ooo oor oot or- orc ore orf ork orn oro orr ort oru ot- otc ote otf otk otn oto otr ott otu ou- ouc oue ouf ouk oun ouo our out rcc rce rcf rcn rco rcr rct rcu re- rec ree ref rek ren reo rer ret reu rfc rfe rff rfk rfn rfo rfr rft rfu rkc rke rkf rkk rko rkt rku rnc rnn rno rnr rnt rnu roc roe rof rok ron roo ror rot rou rrc rrf rrk rrn rrr rrt rru rtc rte rtf rtk rtn rto rtr rtt rtu ruc rue ruf ruk run ruo rur rut ruu tcc tce tcf tck tcn tco tcr tct tcu te- tec tee tef tek ten teo ter tet teu tfc tfe tff tfk tfn tfo tfr tft tfu tkc tke tkk tko tkr tkt tnc tne tnf tnk tnn tno tnr tnt to- toc toe tof tok ton too tor tot tou trc tre trf trk trn tro trr trt tru ttc tte ttf ttk ttn tto ttr ttt ttu tuc tue tuf tuk tun tuo tur tut tuu ucc uce ucf uck ucn uco ucr uct ucu uec uee uef uen uer uet ufc ufe uff ufn ufo ufr uft ufu ukc uke ukf ukk ukn ukr uku un- unc une unf unk unn uno unr unt unu uoc uoe uok uon uoo uor uot ur- urc ure urf urk urn uro urr urt uru utc ute utf utk utn uto utr utt utu uuc uue uun uur uut uuu