-er -ic c-- ccc ccd cce ccg cci cck ccn cco ccp ccr cdc cdd cde cdg cdi cdk cdn cdo cdp cdr ce- cec ced cee ceg cei cek cen ceo cep cer cgc cgd cge cgg cgi cgn cgo cgp cgr ci- cic cid cie cig cii cik cin cio cip cir ckc ckd cki cko cn- cnc cnd cne cng cni cnn cno cnp cnr co- coc cod coe cog coi cok con coo cop cor cpc cpd cpe cpg cpi cpk cpn cpo cpp cpr crc crd cre crg cri crk crn cro crp crr dcc dcd dce dcg dci dck dcn dco dcp dcr ddc ddd dde ddg ddi ddk ddn ddo ddp ddr de- dec ded dee deg dei dek den deo dep der dgc dgd dge dgg dgi dgk dgn dgp dgr di- dic did die dig dii dik din dio dip dir dkc dke dkg dki dkk dko dkp dkr dnc dnd dne dng dni dnk dnn dno dnp dnr doc dod doe dog doi dok don doo dop dor dpc dpd dpe dpg dpi dpk dpn dpo dpp dpr drc drd dre drg dri drk drn dro drp drr ec- ecc ecd ece ecg eci eck ecn eco ecr ed- edc edd ede edg edi edk edn edo edp edr eec eed eee eeg eek een eeo eep eer egc egd ege egg egi egn ego egp egr eic eid eie eig eii eik ein eio eip eir ekc ekd eke ekg eki eko ekp ekr en- enc end ene eng eni enk enn eno enp enr eo- eoc eod eoe eog eoi eok eon eoo eop eor ep- epc epd epe epg epi epn epo epp epr erc erd ere erg eri erk ern ero erp err g-d g-p gcc gcd gce gcg gci gck gcn gco gcp gcr gdc gdd gde gdi gdk gdn gdo gdp gdr ge- gec ged gee geg gei gek gen geo gep ger ggc ggd ggg ggi ggn ggo ggp ggr gic gid gie gig gii gik gin gio gip gir gkd gkn gko gkp gnc gnd gne gni gnn gno gnp gnr goc god goe gog goi gok gon goo gop gor gpc gpd gpe gpg gpi gpk gpn gpo gpp gpr grc grd gre grg gri grk grn gro grp grr i-d icc icd ice icg ici ick icn ico icp icr idc idd ide idg idi idk idn ido idp idr ie- iec ied iee ieg iei iek ien iep ier igc igd ige igg igi igk ign igo igp igr iic iid iie iii iin iio iip iir ikc ike iki ikk iko ikr in- inc ind ine ing ini ink inn ino inp inr io- ioc iod ioe iog ioi ion ioo iop ior ipc ipd ipe ipg ipi ipn ipo ipp ipr ir- irc ird ire irg iri irk irn iro irp irr kcc kcd kce kcg kci kck kcn kcp kcr kdc kde kdg kdk kdo kdp kdr ke- kec ked kee keg kei kek ken keo kep ker kgc kgd kgi kgo kgp kic kid kie kig kii kik kin kio kip kir kkc kke kki kkk kkn kkp kkr kn- knc knd kne kng kni knk knn kno knp knr koc kod koe kog koi kok kon koo kop kor kpc kpd kpe kpi kpk kpn kpo kpp kpr krc krd krg kri krk krn kro krp krr n-i ncc ncd nce ncg nci nck ncn nco ncp ncr ndc ndd nde ndg ndi ndk ndn ndo ndp ndr ne- nec ned nee neg nei nek nen neo nep ner ngc ngd nge ngg ngi ngk ngn ngo ngp nic nid nie nig nii nik nin nio nip nir nkc nke nki nkk nkn nko nkp nkr nnc nne nng nni nnk nnn nno nnp no- noc nod noe nog noi nok non noo nop nor npc npd npe npg npi npn npo npp npr nrc nrd nre nrg nri nrk nrn nro nrp nrr o-i oc- occ ocd ocg oci ock ocn oco ocp ocr odc odd ode odg odi odn odo odp odr oec oed oee oeg oei oen oeo oep oer ogc ogd oge ogg ogi ogn ogo ogp oic oid oie oii oik oin oio oip oir okc okd oke okg oki okk oko okp okr on- onc ond one ong oni onk onn ono onp onr oo- ooc ood oog ooi ook oon ooo oop oor op- opc opd ope opg opi opk opn opo opp opr or- orc ord ore org ori ork orn oro orp orr p-p pcc pcd pce pcg pci pck pcn pco pcp pcr pdc pdd pde pdg pdi pdk pdn pdo pdp pdr pec ped pee peg pei pek pen peo pep per pgc pgd pge pgg pgi pgk pgn pgo pgp pgr pic pid pie pig pii pik pin pio pip pir pkc pkd pke pkg pki pkn pko pkp pkr pn- pnc pnd pne png pni pnk pnn pno pnp pnr poc pod poe pog poi pok pon poo pop por ppc ppd ppe ppg ppi ppk ppn ppo ppp ppr prc prd pre prg pri prk prn pro prp prr rcc rcd rce rcg rci rcn rco rcp rcr rdc rdd rde rdg rdi rdn rdo rdp rdr re- rec red ree reg rei rek ren reo rep rer rgc rgd rge rgg rgi rgk rgn rgo rgp rgr ric rid rie rig rii rik rin rio rip rir rkc rke rkg rkk rko rkp rnc rnd rng rni rnn rno rnp rnr roc rod roe rog roi rok ron roo rop ror rpc rpd rpe rpg rpi rpk rpn rpo rpp rpr rrc rrd rrg rri rrk rrn rrp rrr