-er -ic c-- ccc ccd cce ccg cch cci cck cco ccr cdc cdd cde cdg cdh cdi cdk cdo cdr ce- cec ced cee ceg ceh cei cek ceo cer cgc cgd cge cgg cgh cgi cgo cgr ch- chc chd che chg chh chi chk cho chr ci- cic cid cie cig cih cii cik cio cir ckc ckd ckh cki cko co- coc cod coe cog coh coi cok coo cor crc crd cre crg crh cri crk cro crr dcc dcd dce dcg dci dck dco dcr ddc ddd dde ddg ddh ddi ddk ddo ddr de- dec ded dee deg deh dei dek deo der dgc dgd dge dgg dgh dgi dgk dgr dh- dhc dhd dhe dhh dhi dhk dho dhr di- dic did die dig dih dii dik dio dir dkc dke dkg dki dkk dko dkr doc dod doe dog doh doi dok doo dor drc drd dre drg dri drk dro drr ec- ecc ecd ece ecg ech eci eck eco ecr ed- edc edd ede edg edh edi edk edo edr eec eed eee eeg eek eeo eer egc egd ege egg egh egi ego egr ehc ehd ehe ehg ehh ehi eho ehr eic eid eie eig eii eik eio eir ekc ekd eke ekg ekh eki eko ekr eo- eoc eod eoe eog eoh eoi eok eoo eor erc erd ere erg erh eri erk ero err g-d gcc gcd gce gcg gch gci gck gco gcr gdc gdd gde gdh gdi gdk gdo gdr ge- gec ged gee geg geh gei gek geo ger ggc ggd ggg ggh ggi ggo ggr ghc ghd ghe ghg ghh ghi gho ghr gic gid gie gig gih gii gik gio gir gkd gkh gko goc god goe gog goh goi gok goo gor grc grd gre grg grh gri grk gro grr h-i hcc hcd hce hcg hch hci hck hco hcr hdc hdd hde hdg hdh hdi hdk hdo hdr he- hec hed hee heg heh hei hek heo her hgc hge hgg hgh hgi hgk hgo hgr hhc hhd hhe hhg hhh hhi hhk hho hhr hic hid hie hig hih hii hik hio hir hkd hkg hkh hki hkk hko hkr hoc hod hoe hog hoh hoi hok hoo hor hr- hrc hrd hre hrg hrh hri hrk hro hrr i-d icc icd ice icg ich ici ick ico icr idc idd ide idg idh idi idk ido idr ie- iec ied iee ieg iei iek ier igc igd ige igg igh igi igk igo igr ihc ihd ihe ihg ihh ihi ihk iho ihr iic iid iie iih iii iio iir ikc ike iki ikk iko ikr io- ioc iod ioe iog ioh ioi ioo ior ir- irc ird ire irg iri irk iro irr kcc kcd kce kcg kch kci kck kcr kdc kde kdg kdh kdk kdo kdr ke- kec ked kee keg keh kei kek keo ker kgc kgd kgh kgi kgo khe khh khi khk kho khr kic kid kie kig kih kii kik kio kir kkc kke kkh kki kkk kkr koc kod koe kog koh koi kok koo kor krc krd krg kri krk kro krr o-i oc- occ ocd ocg och oci ock oco ocr odc odd ode odg odh odi odo odr oec oed oee oeg oeh oei oeo oer ogc ogd oge ogg ogh ogi ogo ohc ohd ohe ohg ohh ohi oho ohr oic oid oie oii oik oio oir okc okd oke okg oki okk oko okr oo- ooc ood oog ooh ooi ook ooo oor or- orc ord ore org orh ori ork oro orr rcc rcd rce rcg rch rci rco rcr rdc rdd rde rdg rdh rdi rdo rdr re- rec red ree reg reh rei rek reo rer rgc rgd rge rgg rgh rgi rgk rgo rgr rh- rhc rhd rhe rhg rhh rhi rho rhr ric rid rie rig rih rii rik rio rir rkc rke rkg rkk rko roc rod roe rog roh roi rok roo ror rrc rrd rrg rrh rri rrk rrr