-er -ic c-- ccc ccd cce cci ccn cco ccp ccr cct cdc cdd cde cdi cdn cdo cdp cdr cdt ce- cec ced cee cei cen ceo cep cer cet ci- cic cid cie cii cin cio cip cir cit cn- cnc cnd cne cni cnn cno cnp cnr cnt co- coc cod coe coi con coo cop cor cot cpc cpd cpe cpi cpn cpo cpp cpr cpt crc crd cre cri crn cro crp crr crt ctc ctd cte cti ctn cto ctp ctr ctt dcc dcd dce dci dcn dco dcp dcr dct ddc ddd dde ddi ddn ddo ddp ddr ddt de- dec ded dee dei den deo dep der det di- dic did die dii din dio dip dir dit dnc dnd dne dni dnn dno dnp dnr dnt doc dod doe doi don doo dop dor dot dpc dpd dpe dpi dpn dpo dpp dpr dpt drc drd dre dri drn dro drp drr drt dtc dtd dte dti dtn dto dtp dtr dtt ec- ecc ecd ece eci ecn eco ecr ect ed- edc edd ede edi edn edo edp edr edt eec eed eee een eeo eep eer eet eic eid eie eii ein eio eip eir eit en- enc end ene eni enn eno enp enr ent eo- eoc eod eoe eoi eon eoo eop eor eot ep- epc epd epe epi epn epo epp epr ept erc erd ere eri ern ero erp err ert etc etd ete eti etn eto etp etr ett i-d icc icd ice ici icn ico icp icr ict idc idd ide idi idn ido idp idr idt ie- iec ied iee iei ien iep ier iet iic iid iie iii iin iio iip iir iit in- inc ind ine ini inn ino inp inr int io- ioc iod ioe ioi ion ioo iop ior iot ipc ipd ipe ipi ipn ipo ipp ipr ipt ir- irc ird ire iri irn iro irp irr irt itc itd ite iti itn ito itp itt n-i ncc ncd nce nci ncn nco ncp ncr nct ndc ndd nde ndi ndn ndo ndp ndr ndt ne- nec ned nee nei nen neo nep ner net nic nid nie nii nin nio nip nir nit nnc nne nni nnn nno nnp nnt no- noc nod noe noi non noo nop nor not npc npd npe npi npn npo npp npr npt nrc nrd nre nri nrn nro nrp nrr nrt ntc ntd nte nti ntn nto ntp ntr ntt o-i oc- occ ocd oci ocn oco ocp ocr oct odc odd ode odi odn odo odp odr odt oec oed oee oei oen oeo oep oer oet oic oid oie oii oin oio oip oir oit on- onc ond one oni onn ono onp onr ont oo- ooc ood ooi oon ooo oop oor oot op- opc opd ope opi opn opo opp opr opt or- orc ord ore ori orn oro orp orr ort ot- otc otd ote oti otn oto otp otr ott p-p pcc pcd pce pci pcn pco pcp pcr pct pdc pdd pde pdi pdn pdo pdp pdr pdt pec ped pee pei pen peo pep per pet pic pid pie pii pin pio pip pir pit pn- pnc pnd pne pni pnn pno pnp pnr pnt poc pod poe poi pon poo pop por pot ppc ppd ppe ppi ppn ppo ppp ppr ppt prc prd pre pri prn pro prp prr prt pt- ptc ptd pte pti ptn pto ptp ptr ptt rcc rcd rce rci rcn rco rcp rcr rct rdc rdd rde rdi rdn rdo rdp rdr rdt re- rec red ree rei ren reo rep rer ret ric rid rie rii rin rio rip rir rit rnc rnd rni rnn rno rnp rnr rnt roc rod roe roi ron roo rop ror rot rpc rpd rpe rpi rpn rpo rpp rpr rpt rrc rrd rri rrn rrp rrr rrt rtc rtd rte rti rtn rto rtp rtr rtt tcc tcd tce tci tcn tco tcp tcr tct tdc tdd tde tdi tdn tdo tdp tdr tdt te- tec ted tee tei ten teo tep ter tet tic tid tie tii tin tio tip tir tit tnc tnd tne tni tnn tno tnp tnr tnt to- toc tod toe toi ton too top tor tot tpc tpd tpe tpi tpn tpo tpp tpr tpt trc trd tre tri trn tro trp trr trt ttc ttd tte tti ttn tto ttp ttr ttt