-er -ic c-- ccc ccd cce ccg cci ccn cco ccp ccr cdc cdd cde cdg cdi cdn cdo cdp cdr ce- cec ced cee ceg cei cen ceo cep cer cgc cgd cge cgg cgi cgn cgo cgp cgr ci- cic cid cie cig cii cin cio cip cir cn- cnc cnd cne cng cni cnn cno cnp cnr co- coc cod coe cog coi con coo cop cor cpc cpd cpe cpg cpi cpn cpo cpp cpr crc crd cre crg cri crn cro crp crr dcc dcd dce dcg dci dcn dco dcp dcr ddc ddd dde ddg ddi ddn ddo ddp ddr de- dec ded dee deg dei den deo dep der dgc dgd dge dgg dgi dgn dgp dgr di- dic did die dig dii din dio dip dir dnc dnd dne dng dni dnn dno dnp dnr doc dod doe dog doi don doo dop dor dpc dpd dpe dpg dpi dpn dpo dpp dpr drc drd dre drg dri drn dro drp drr ec- ecc ecd ece ecg eci ecn eco ecr ed- edc edd ede edg edi edn edo edp edr eec eed eee eeg een eeo eep eer egc egd ege egg egi egn ego egp egr eic eid eie eig eii ein eio eip eir en- enc end ene eng eni enn eno enp enr eo- eoc eod eoe eog eoi eon eoo eop eor ep- epc epd epe epg epi epn epo epp epr erc erd ere erg eri ern ero erp err g-d g-p gcc gcd gce gcg gci gcn gco gcp gcr gdc gdd gde gdi gdn gdo gdp gdr ge- gec ged gee geg gei gen geo gep ger ggc ggd ggg ggi ggn ggo ggp ggr gic gid gie gig gii gin gio gip gir gnc gnd gne gni gnn gno gnp gnr goc god goe gog goi gon goo gop gor gpc gpd gpe gpg gpi gpn gpo gpp gpr grc grd gre grg gri grn gro grp grr i-d icc icd ice icg ici icn ico icp icr idc idd ide idg idi idn ido idp idr ie- iec ied iee ieg iei ien iep ier igc igd ige igg igi ign igo igp igr iic iid iie iii iin iio iip iir in- inc ind ine ing ini 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 irn iro irp irr n-i ncc ncd nce ncg nci ncn nco ncp ncr ndc ndd nde ndg ndi ndn ndo ndp ndr ne- nec ned nee neg nei nen neo nep ner ngc ngd nge ngg ngi ngn ngo ngp nic nid nie nig nii nin nio nip nir nnc nne nng nni nnn nno nnp no- noc nod noe nog noi non noo nop nor npc npd npe npg npi npn npo npp npr nrc nrd nre nrg nri nrn nro nrp nrr o-i oc- occ ocd ocg oci 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 oin oio oip oir on- onc ond one ong oni onn ono onp onr oo- ooc ood oog ooi oon ooo oop oor op- opc opd ope opg opi opn opo opp opr or- orc ord ore org ori orn oro orp orr p-p pcc pcd pce pcg pci pcn pco pcp pcr pdc pdd pde pdg pdi pdn pdo pdp pdr pec ped pee peg pei pen peo pep per pgc pgd pge pgg pgi pgn pgo pgp pgr pic pid pie pig pii pin pio pip pir pn- pnc pnd pne png pni pnn pno pnp pnr poc pod poe pog poi pon poo pop por ppc ppd ppe ppg ppi ppn ppo ppp ppr prc prd pre prg pri 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 ren reo rep rer rgc rgd rge rgg rgi rgn rgo rgp rgr ric rid rie rig rii rin rio rip rir rnc rnd rng rni rnn rno rnp rnr roc rod roe rog roi ron roo rop ror rpc rpd rpe rpg rpi rpn rpo rpp rpr rrc rrd rrg rri rrn rrp rrr