-er -ic a-a a-c a-i aaa aac aae aaf aag aai aan aao aap aar ac- aca acc ace acf acg aci acn aco acp acr aea aec aee aef aeg aei aen aeo aep aer af- afa afc afe aff afg afi afn afo afp afr ag- aga agc age agf agg agi agn ago agp agr ai- aia aic aie aif aig aii ain aio aip air an- ana anc ane anf ang ani ann ano anp anr aoa aoc aoe aof aog aoi aon aoo aop aor ap- apa apc ape apf apg api apn apo app apr ar- ara arc are arf arg ari arn aro arp arr c-- caa cac cae caf cag cai can cao cap car cca ccc cce ccf ccg cci ccn cco ccp ccr ce- cea cec cee cef ceg cei cen ceo cep cer cfa cfc cfe cff cfg cfi cfn cfo cfp cfr cga cgc cge cgg cgi cgn cgo cgp cgr ci- cia cic cie cif cig cii cin cio cip cir cn- cna cnc cne cnf cng cni cnn cno cnp cnr co- coa coc coe cof cog coi con coo cop cor cpa cpc cpe cpf cpg cpi cpn cpo cpp cpr cra crc cre crf crg cri crn cro crp crr eaa eac eae eaf eag eai ean eao eap ear ec- eca ecc ece ecf ecg eci ecn eco ecr eea eec eee eef eeg een eeo eep eer ef- efa efc efe eff efg efi efo efp efr ega egc ege egf egg egi egn ego egp egr eia eic eie eif eig eii ein eio eip eir en- ena enc ene enf eng eni enn eno enp enr eo- eoa eoc eoe eof eog eoi eon eoo eop eor ep- epa epc epe epf epg epi epn epo epp epr era erc ere erf erg eri ern ero erp err faa fac fae faf fag fai fan fao fap far fca fcc fce fcf fcg fci fcn fco fcp fcr fea fec fee fef feg fei fen feo fep fer ffa ffc ffe fff ffg ffi ffn ffo ffp ffr fga fgc fge fgf fgg fgi fgn fgp fgr fia fic fie fif fig fii fin fip fir fna fnc fne fnf fng fni fnn fnp fnr foa foc foe fof fog foi fon foo fop for fpa fpc fpe fpg fpi fpn fpo fpp fpr fra frc fre frf frg fri frn fro frp frr g-p gaa gac gae gaf gag gai gan gao gap gar gca gcc gce gcf gcg gci gcn gco gcp gcr ge- gea gec gee gef geg gei gen geo gep ger gfa gfc gfe gff gfi gfo gfp gfr gga ggc ggg ggi ggn ggo ggp ggr gia gic gie gif gig gii gin gio gip gir gna gnc gne gnf gni gnn gno gnp gnr goa goc goe gof gog goi gon goo gop gor gpa gpc gpe gpf gpg gpi gpn gpo gpp gpr gra grc gre grf grg gri grn gro grp grr i-f ia- iaa iac iae iaf iag iai ian iao iap iar ica icc ice icf icg ici icn ico icp icr ie- iea iec iee ief ieg iei ien iep ier ifa ifc ife iff ifg ifi ifn ifo ifp ifr iga igc ige igf igg igi ign igo igp igr iia iic iie iif iii iin iio iip iir in- ina inc ine inf ing ini inn ino inp inr io- ioa ioc ioe iof iog ioi ion ioo iop ior ipa ipc ipe ipf ipg ipi ipn ipo ipp ipr ir- ira irc ire irf irg iri irn iro irp irr n-i naa nac nae naf nag nai nan nao nap nar nca ncc nce ncf ncg nci ncn nco ncp ncr ne- nea nec nee nef neg nei nen neo nep ner nfa nfc nfe nff nfi nfn nfo nfp nfr nga ngc nge ngf ngg ngi ngn ngo ngp nia nic nie nif nig nii nin nio nip nir nna nnc nne nnf nng nni nnn nno nnp no- noa noc noe nof nog noi non noo nop nor npa npc npe npf npg npi npn npo npp npr nra nrc nre nrf nrg nri nrn nro nrp nrr o-i oaa oac oae oaf oag oai oan oao oap oar oc- oca occ ocf ocg oci ocn oco ocp ocr oea oec oee oef oeg oei oen oeo oep oer of- ofa ofc ofe off ofg ofi ofn ofo ofp ofr oga ogc oge ogf ogg ogi ogn ogo ogp oia oic oie oif oii oin oio oip oir on- ona onc one onf ong oni onn ono onp onr oo- ooa ooc oof oog ooi oon ooo oop oor op- opa opc ope opf opg opi opn opo opp opr or- ora orc ore orf org ori orn oro orp orr p-p paa pac pae paf pag pai pan pao pap par pca pcc pce pcf pcg pci pcn pco pcp pcr pea pec pee pef peg pei pen peo pep per pfa pfc pfe pff pfg pfi pfn pfo pfp pfr pga pgc pge pgf pgg pgi pgn pgo pgp pgr pia pic pie pif pig pii pin pio pip pir pn- pna pnc pne pnf png pni pnn pno pnp pnr poa poc poe pof pog poi pon poo pop por ppa ppc ppe ppf ppg ppi ppn ppo ppp ppr pra prc pre prf prg pri prn pro prp prr ra- raa rac rae raf rag rai ran rao rap rar rca rcc rce rcf rcg rci rcn rco rcp rcr re- rea rec ree ref reg rei ren reo rep rer rfa rfc rfe rff rfg rfi rfn rfo rfp rfr rga rgc rge rgf rgg rgi rgn rgo rgp rgr ria ric rie rif rig rii rin rio rip rir rna rnc rng rni rnn rno rnp rnr roa roc roe rof rog roi ron roo rop ror