-ic a-a a-c a-i aaa aac aai aan aao aap aar aas ac- aca acc aci acn aco acp acr acs ai- aia aic aii ain aio aip air ais an- ana anc ani ann ano anp anr ans aoa aoc aoi aon aoo aop aor aos ap- apa apc api apn apo app apr aps ar- ara arc ari arn aro arp arr ars as- asa asc asi asn aso asp asr ass c-- caa cac cai can cao cap car cas cca ccc cci ccn cco ccp ccr ccs ci- cia cic cii cin cio cip cir cis cn- cna cnc cni cnn cno cnp cnr cns co- coa coc coi con coo cop cor cos cpa cpc cpi cpn cpo cpp cpr cps cra crc cri crn cro crp crr crs csa csc csi csn cso csp csr css ia- iaa iac iai ian iao iap iar ias ica icc ici icn ico icp icr ics iia iic iii iin iio iip iir iis in- ina inc ini inn ino inp inr ins io- ioa ioc ioi ion ioo iop ior ios ipa ipc ipi ipn ipo ipp ipr ips ir- ira irc iri irn iro irp irr irs is- isa isc isi isn iso isp isr iss n-i naa nac nai nan nao nap nar nas nca ncc nci ncn nco ncp ncr ncs nia nic nii nin nio nip nir nis nna nnc nni nnn nno nnp nns no- noa noc noi non noo nop nor nos npa npc npi npn npo npp npr nps nra nrc nri nrn nro nrp nrr nrs nsa nsc nsi nsn nso nsp nsr nss o-i oaa oac oai oan oao oap oar oas oc- oca occ oci ocn oco ocp ocr ocs oia oic oii oin oio oip oir ois on- ona onc oni onn ono onp onr ons oo- ooa ooc ooi oon ooo oop oor oos op- opa opc opi opn opo opp opr ops or- ora orc ori orn oro orp orr ors os- osa osc osi osn oso osp osr oss p-p paa pac pai pan pao pap par pas pca pcc pci pcn pco pcp pcr pcs pia pic pii pin pio pip pir pis pn- pna pnc pni pnn pno pnp pnr pns poa poc poi pon poo pop por pos ppa ppc ppi ppn ppo ppp ppr pps pra prc pri prn pro prp prr prs ps- psa psc psi psn pso psp psr pss ra- raa rac rai ran rao rap rar ras rca rcc rci rcn rco rcp rcr rcs ria ric rii rin rio rip rir ris rna rnc rni rnn rno rnp rnr rns roa roc roi ron roo rop ror ros rpa rpc rpi rpn rpo rpp rpr rps rra rrc rri rrn rrp rrr rrs rsa rsc rsi rsn rso rsp rsr rss saa sac sai san sao sap sar sas sca scc sci scn sco scp scr scs sia sic sii sin sio sip sir sis sna snc sni snn sno snp snr sns soa soc soi son soo sop sor sos spa spc spi spn spo spp spr sps sr- sra src sri srn sro srp srr srs ss- ssa ssc ssi ssn sso ssp ssr sss