-er -ic -th c-- ccc ccd cce cch cci cck cco ccr ccs cct cdc cdd cde cdh cdi cdk cdo cdr cds cdt ce- cec ced cee ceh cei cek ceo cer ces cet ch- chc chd che chh chi chk cho chr chs cht ci- cic cid cie cih cii cik cio cir cis cit ckc ckd ckh cki cko cks ckt co- coc cod coe coh coi cok coo cor cos cot crc crd cre crh cri crk cro crr crs crt csc csd cse csh csi csk cso csr css cst ctc ctd cte cth cti ctk cto ctr cts ctt dcc dcd dce dci dck dco dcr dcs dct ddc ddd dde ddh ddi ddk ddo ddr dds ddt de- dec ded dee deh dei dek deo der des det dh- dhc dhd dhe dhh dhi dhk dho dhr dhs dht di- dic did die dih dii dik dio dir dis dit dkc dke dki dkk dko dkr dks dkt doc dod doe doh doi dok doo dor dos dot drc drd dre dri drk dro drr drs drt dsc dsd dse dsh dsi dsk dso dsr dss dst dtc dtd dte dth dti dtk dto dtr dts dtt ec- ecc ecd ece ech eci eck eco ecr ecs ect ed- edc edd ede edh edi edk edo edr eds edt eec eed eee eek eeo eer ees eet ehc ehd ehe ehh ehi eho ehr ehs eht eic eid eie eii eik eio eir eis eit ekc ekd eke ekh eki eko ekr eks ekt eo- eoc eod eoe eoh eoi eok eoo eor eos eot erc erd ere erh eri erk ero err ers ert es- esc esd ese esh esi esk eso esr ess est etc etd ete eth eti etk eto etr ets ett h-i hcc hcd hce hch hci hck hco hcr hcs hct hdc hdd hde hdh hdi hdk hdo hdr hds hdt he- hec hed hee heh hei hek heo her hes het hhc hhd hhe hhh hhi hhk hho hhr hhs hht hic hid hie hih hii hik hio hir his hit hkd hkh hki hkk hko hkr hks hkt hoc hod hoe hoh hoi hok hoo hor hos hot hr- hrc hrd hre hrh hri hrk hro hrr hrs hrt hsc hsd hse hsh hsi hsk hsr hss hst htc htd hte hth hti htk hto htr hts htt i-d icc icd ice ich ici ick ico icr ics ict idc idd ide idh idi idk ido idr ids idt ie- iec ied iee iei iek ier ies iet ihc ihd ihe ihh ihi ihk iho ihr ihs iht iic iid iie iih iii iio iir iis iit ikc ike iki ikk iko ikr iks ikt io- ioc iod ioe ioh ioi ioo ior ios iot ir- irc ird ire iri irk iro irr irs irt is- isc isd ise ish isi isk iso isr iss ist itc itd ite ith iti itk ito its itt k-t kcc kcd kce kch kci kck kcr kcs kct kdc kde kdh kdk kdo kdr kds kdt ke- kec ked kee keh kei kek keo ker kes ket khe khh khi khk kho khr khs kic kid kie kih kii kik kio kir kis kit kkc kke kkh kki kkk kkr kks kkt koc kod koe koh koi kok koo kor kos kot krc krd kri krk kro krr krs krt ksc ksd kse ksh ksi ksk kso ksr kss kst ktc kte kth ktk kto ktr kts ktt o-i oc- occ ocd och oci ock oco ocr ocs oct odc odd ode odh odi odo odr ods odt oec oed oee oeh oei oeo oer oes oet ohc ohd ohe ohh ohi oho ohr ohs oht oic oid oie oii oik oio oir ois oit okc okd oke oki okk oko okr oks oo- ooc ood ooh ooi ook ooo oor oos oot or- orc ord ore orh ori ork oro orr ors ort os- osc osd ose osh osi osk oso osr oss ost ot- otc otd ote oth oti otk oto otr ots ott rcc rcd rce rch rci rco rcr rcs rct rdc rdd rde rdh rdi rdo rdr rds rdt re- rec red ree reh rei rek reo rer res ret rh- rhc rhd rhe rhh rhi rho rhr rhs rht ric rid rie rih rii rik rio rir ris rit rkc rke rkk rko rks rkt roc rod roe roh roi rok roo ror ros rot rrc rrd rrh rri rrk rrr rrs rrt rsc rsd rse rsh rsi rsk rso rsr rss rst rtc rtd rte rti rtk rto rtr rts rtt scc scd sce sch sci sck sco scr scs sct sdc sdd sde sdh sdi sdk sdo sdr sds sdt se- sec sed see seh sei sek seo ser ses set sh- shc shd she shh shi shk sho shr shs sht sic sid sie sih sii sik sio sir sis sit sk- skc skd ske skh ski skk sko skr sks skt soc sod soe soh soi sok soo sor sos sot sr- src srd sre srh sri srk sro srr srs srt ss- ssc ssd sse ssh ssi ssk sso ssr sss sst stc std ste sth sti stk sto str sts stt tcc tcd tce tch tci tck tco tcr tcs tct tdc tdd tde tdh tdi tdk tdo tdr tds tdt te- tec ted tee teh tei tek teo ter tes tet th- thc thd the thh thi thk tho thr ths tht tic tid tie tih tii tik tio tir tis tit tkc tke tkk tko tkr tks tkt to- toc tod toe toh toi tok too tor tos tot trc trd tre trh tri trk tro trr trs trt tsc tsd tse tsh tsi tsk tso tsr tss tst ttc ttd tte tth tti ttk tto ttr tts ttt