-er -ic -th c-- ccc ccd cce cch cci cck cco ccr cct cdc cdd cde cdh cdi cdk cdo cdr cdt ce- cec ced cee ceh cei cek ceo cer cet ch- chc chd che chh chi chk cho chr cht ci- cic cid cie cih cii cik cio cir cit ckc ckd ckh cki cko ckt co- coc cod coe coh coi cok coo cor cot crc crd cre crh cri crk cro crr crt ctc ctd cte cth cti ctk cto ctr ctt dcc dcd dce dci dck dco dcr dct ddc ddd dde ddh ddi ddk ddo ddr ddt de- dec ded dee deh dei dek deo der det dh- dhc dhd dhe dhh dhi dhk dho dhr dht di- dic did die dih dii dik dio dir dit dkc dke dki dkk dko dkr dkt doc dod doe doh doi dok doo dor dot drc drd dre dri drk dro drr drt dtc dtd dte dth dti dtk dto dtr dtt ec- ecc ecd ece ech eci eck eco ecr ect ed- edc edd ede edh edi edk edo edr edt eec eed eee eek eeo eer eet ehc ehd ehe ehh ehi eho ehr eht eic eid eie eii eik eio eir eit ekc ekd eke ekh eki eko ekr ekt eo- eoc eod eoe eoh eoi eok eoo eor eot erc erd ere erh eri erk ero err ert etc etd ete eth eti etk eto etr ett h-i hcc hcd hce hch hci hck hco hcr hct hdc hdd hde hdh hdi hdk hdo hdr hdt he- hec hed hee heh hei hek heo her het hhc hhd hhe hhh hhi hhk hho hhr hht hic hid hie hih hii hik hio hir hit hkd hkh hki hkk hko hkr hkt hoc hod hoe hoh hoi hok hoo hor hot hr- hrc hrd hre hrh hri hrk hro hrr hrt htc htd hte hth hti htk hto htr htt i-d icc icd ice ich ici ick ico icr ict idc idd ide idh idi idk ido idr idt ie- iec ied iee iei iek ier iet ihc ihd ihe ihh ihi ihk iho ihr iht iic iid iie iih iii iio iir iit ikc ike iki ikk iko ikr ikt io- ioc iod ioe ioh ioi ioo ior iot ir- irc ird ire iri irk iro irr irt itc itd ite ith iti itk ito itt k-t kcc kcd kce kch kci kck kcr kct kdc kde kdh kdk kdo kdr kdt ke- kec ked kee keh kei kek keo ker ket khe khh khi khk kho khr kic kid kie kih kii kik kio kir kit kkc kke kkh kki kkk kkr kkt koc kod koe koh koi kok koo kor kot krc krd kri krk kro krr krt ktc kte kth ktk kto ktr ktt o-i oc- occ ocd och oci ock oco ocr oct odc odd ode odh odi odo odr odt oec oed oee oeh oei oeo oer oet ohc ohd ohe ohh ohi oho ohr oht oic oid oie oii oik oio oir oit okc okd oke oki okk oko okr oo- ooc ood ooh ooi ook ooo oor oot or- orc ord ore orh ori ork oro orr ort ot- otc otd ote oth oti otk oto otr ott rcc rcd rce rch rci rco rcr rct rdc rdd rde rdh rdi rdo rdr rdt re- rec red ree reh rei rek reo rer ret rh- rhc rhd rhe rhh rhi rho rhr rht ric rid rie rih rii rik rio rir rit rkc rke rkk rko rkt roc rod roe roh roi rok roo ror rot rrc rrd rrh rri rrk rrr rrt rtc rtd rte rti rtk rto rtr rtt tcc tcd tce tch tci tck tco tcr tct tdc tdd tde tdh tdi tdk tdo tdr tdt te- tec ted tee teh tei tek teo ter tet th- thc thd the thh thi thk tho thr tht tic tid tie tih tii tik tio tir tit tkc tke tkk tko tkr tkt to- toc tod toe toh toi tok too tor tot trc trd tre trh tri trk tro trr trt ttc ttd tte tth tti ttk tto ttr ttt