-er -ic c-- ccc cce ccf cch cci cck ccn cco ccr ce- cec cee cef ceh cei cek cen ceo cer cfc cfe cff cfh cfi cfk cfn cfo cfr ch- chc che chf chh chi chk chn cho chr ci- cic cie cif cih cii cik cin cio cir ckc ckh cki cko cn- cnc cne cnf cnh cni cnn cno cnr co- coc coe cof coh coi cok con coo cor crc cre crf crh cri crk crn cro crr ec- ecc ece ecf ech eci eck ecn eco ecr eec eee eef eek een eeo eer ef- efc efe eff efh efi efo efr ehc ehe ehf ehh ehi ehn eho ehr eic eie eif eii eik ein eio eir ekc eke ekf ekh eki eko ekr en- enc ene enf enh eni enk enn eno enr eo- eoc eoe eof eoh eoi eok eon eoo eor erc ere erf erh eri erk ern ero err fcc fce fcf fci fck fcn fco fcr fec fee fef feh fei fek fen feo fer ffc ffe fff ffh ffi ffk ffn ffo ffr fhc fhe fhf fhh fhi fhn fho fhr fic fie fif fih fii fik fin fir fkc fkf fki fkk fnc fne fnf fnh fni fnk fnn fnr foc foe fof foh foi fok fon foo for frc fre frf frh fri frk frn fro frr h-i hcc hce hcf hch hci hck hcn hco hcr he- hec hee hef heh hei hek hen heo her hfc hfe hff hfh hfi hfk hfn hfo hfr hhc hhe hhf hhh hhi hhk hhn hho hhr hic hie hif hih hii hik hin hio hir hkf hkh hki hkk hkn hko hkr hnc hne hnf hnh hnk hnn hno hoc hoe hof hoh hoi hok hon hoo hor hr- hrc hre hrf hrh hri hrk hrn hro hrr i-f icc ice icf ich ici ick icn ico icr ie- iec iee ief iei iek ien ier ifc ife iff ifi ifn ifo ifr ihc ihe ihf ihh ihi ihk ihn iho ihr iic iie iif iih iii iin iio iir ikc ike ikf iki ikk iko ikr in- inc ine inf inh ini ink inn ino inr io- ioc ioe iof ioh ioi ion ioo ior ir- irc ire irf iri irk irn iro irr kcc kce kch kci kck kcn kcr ke- kec kee kef keh kei kek ken keo ker kfc kff kfh kfi kfo khe khf khh khi khk khn kho khr kic kie kif kih kii kik kin kio kir kkc kke kkh kki kkk kkn kkr kn- knc kne knf kni knk knn kno knr koc koe kof koh koi kok kon koo kor krc krf kri krk krn kro krr n-i ncc nce ncf nch nci nck ncn nco ncr ne- nec nee nef neh nei nek nen neo ner nfc nfe nff nfi nfk nfn nfo nfr nhc nhe nhf nhh nhi nhk nhn nhr nic nie nif nih nii nik nin nio nir nkc nke nkf nki nkk nkn nko nkr nnc nne nnf nnh nni nnk nnn nno no- noc noe nof noh noi nok non noo nor nrc nre nrf nri nrk nrn nro nrr o-i oc- occ ocf och oci ock ocn oco ocr oec oee oef oeh oei oen oeo oer of- ofc ofe off ofi ofn ofo ofr ohc ohe ohf ohh ohi ohn oho ohr oic oie oif oii oik oin oio oir okc oke oki okk oko okr on- onc one onf onh oni onk onn ono onr oo- ooc oof ooh ooi ook oon ooo oor or- orc ore orf orh ori ork orn oro orr rcc rce rcf rch rci rcn rco rcr re- rec ree ref reh rei rek ren reo rer rfc rfe rff rfh rfi rfk rfn rfo rfr rh- rhc rhe rhf rhh rhi rhn rho rhr ric rie rif rih rii rik rin rio rir rkc rke rkf rkk rko rnc rnh rni rnn rno rnr roc roe rof roh roi rok ron roo ror rrc rrf rrh rri rrk rrn rrr