-er -ic c-- ccc ccd cce cch cci cck cco ccr ccu cdc cdd cde cdh cdi cdk cdo cdr cdu ce- cec ced cee ceh cei cek ceo cer ceu ch- chc chd che chh chi chk cho chr chu ci- cic cid cie cih cii cik cio cir ciu ckc ckd ckh cki cko co- coc cod coe coh coi cok coo cor cou crc crd cre crh cri crk cro crr cru cuc cud cue cuh cui cuk cuo cur cuu dcc dcd dce dci dck dco dcr dcu ddc ddd dde ddh ddi ddk ddo ddr ddu de- dec ded dee deh dei dek deo der deu dh- dhc dhd dhe dhh dhi dhk dho dhr dhu di- dic did die dih dii dik dio dir diu dkc dke dki dkk dko dkr dku doc dod doe doh doi dok doo dor dou drc drd dre dri drk dro drr dru duc dud due duh dui duk duo dur ec- ecc ecd ece ech eci eck eco ecr ecu ed- edc edd ede edh edi edk edo edr edu eec eed eee eek eeo eer ehc ehd ehe ehh ehi eho ehr ehu eic eid eie eii eik eio eir eiu ekc ekd eke ekh eki eko ekr eku eo- eoc eod eoe eoh eoi eok eoo eor eou erc erd ere erh eri erk ero err eru eu- euc eud eue eui eur h-i hcc hcd hce hch hci hck hco hcr hdc hdd hde hdh hdi hdk hdo hdr hdu he- hec hed hee heh hei hek heo her heu hhc hhd hhe hhh hhi hhk hho hhr hhu hic hid hie hih hii hik hio hir hiu hkd hkh hki hkk hko hkr hku hoc hod hoe hoh hoi hok hoo hor hou hr- hrc hrd hre hrh hri hrk hro hrr hru huc hud hue huh hui huk huo hur huu i-d icc icd ice ich ici ick ico icr icu idc idd ide idh idi idk ido idr idu ie- iec ied iee iei iek ier ihc ihd ihe ihh ihi ihk iho ihr ihu iic iid iie iih iii iio iir iiu ikc ike iki ikk iko ikr iku io- ioc iod ioe ioh ioi ioo ior iou ir- irc ird ire iri irk iro irr iru iu- iuc iud iue iui iur kcc kcd kce kch kci kck kcr kcu kdc kde kdh kdk kdo kdr kdu ke- kec ked kee keh kei kek keo ker khe khh khi khk kho khr khu kic kid kie kih kii kik kio kir kiu kkc kke kkh kki kkk kkr kku koc kod koe koh koi kok koo kor kou krc krd kri krk kro krr kru kuc kud kue kuh kui kuk kur kuu o-i oc- occ ocd och oci ock oco ocr ocu odc odd ode odh odi odo odr odu oec oed oee oeh oei oeo oer ohc ohd ohe ohh ohi oho ohr ohu oic oid oie oii oik oio oir oiu okc okd oke oki okk oko okr oku oo- ooc ood ooh ooi ook ooo oor or- orc ord ore orh ori ork oro orr oru ou- ouc oud oue ouh oui ouk ouo our rcc rcd rce rch rci rco rcr rcu rdc rdd rde rdh rdi rdo rdr rdu re- rec red ree reh rei rek reo rer reu rh- rhc rhd rhe rhh rhi rho rhr rhu ric rid rie rih rii rik rio rir rkc rke rkk rko rku roc rod roe roh roi rok roo ror rou rrc rrd rrh rri rrk rrr rru ruc rud rue ruh rui ruk ruo rur ruu ucc ucd uce uch uci uck uco ucr ucu udc udd ude udi udk udo udr udu uec ued uee ueh uei uer uhc uhd uhe uhh uhi uho uhr uhu uic uid uie uii uio uir uiu ukc uke uki ukk ukr uku uoc uod uoe uok uoo uor ur- urc urd ure uri urk uro urr uru uuc uue uur uuu