-er -ic c-- ccc cce cci ccn cco ccp ccr cct ce- cec cee cei cen ceo cep cer cet ci- cic cie cii cin cio cip cir cit cn- cnc cne cni cnn cno cnp cnr cnt co- coc coe coi con coo cop cor cot cpc cpe cpi cpn cpo cpp cpr cpt crc cre cri crn cro crp crr crt ctc cte cti ctn cto ctp ctr ctt ec- ecc ece eci ecn eco ecr ect eec eee een eeo eep eer eet eic eie eii ein eio eip eir eit en- enc ene eni enn eno enp enr ent eo- eoc eoe eoi eon eoo eop eor eot ep- epc epe epi epn epo epp epr ept erc ere eri ern ero erp err ert etc ete eti etn eto etp etr ett icc ice ici icn ico icp icr ict ie- iec iee iei ien iep ier iet iic iie iii iin iio iip iir iit in- inc ine ini inn ino inp inr int io- ioc ioe ioi ion ioo iop ior iot ipc ipe ipi ipn ipo ipp ipr ipt ir- irc ire iri irn iro irp irr irt itc ite iti itn ito itp itt n-i ncc nce nci ncn nco ncp ncr nct ne- nec nee nei nen neo nep ner net nic nie nii nin nio nip nir nit nnc nne nni nnn nno nnp nnt no- noc noe noi non noo nop nor not npc npe npi npn npo npp npr npt nrc nre nri nrn nro nrp nrr nrt ntc nte nti ntn nto ntp ntr ntt o-i oc- occ oci ocn oco ocp ocr oct oec oee oei oen oeo oep oer oet oic oie oii oin oio oip oir oit on- onc one oni onn ono onp onr ont oo- ooc ooi oon ooo oop oor oot op- opc ope opi opn opo opp opr opt or- orc ore ori orn oro orp orr ort ot- otc ote oti otn oto otp otr ott p-p pcc pce pci pcn pco pcp pcr pct pec pee pei pen peo pep per pet pic pie pii pin pio pip pir pit pn- pnc pne pni pnn pno pnp pnr pnt poc poe poi pon poo pop por pot ppc ppe ppi ppn ppo ppp ppr ppt prc pre pri prn pro prp prr prt pt- ptc pte pti ptn pto ptp ptr ptt rcc rce rci rcn rco rcp rcr rct re- rec ree rei ren reo rep rer ret ric rie rii rin rio rip rir rit rnc rni rnn rno rnp rnr rnt roc roe roi ron roo rop ror rot rpc rpe rpi rpn rpo rpp rpr rpt rrc rri rrn rrp rrr rrt rtc rte rti rtn rto rtp rtr rtt tcc tce tci tcn tco tcp tcr tct te- tec tee tei ten teo tep ter tet tic tie tii tin tio tip tir tit tnc tne tni tnn tno tnp tnr tnt to- toc toe toi ton too top tor tot tpc tpe tpi tpn tpo tpp tpr tpt trc tre tri trn tro trp trr trt ttc tte tti ttn tto ttp ttr ttt