-ic a-a a-c a-i aaa aac aae aag aai aan aao aap aas ac- aca acc ace acg aci acn aco acp acs aea aec aee aeg aei aen aeo aep aes ag- aga agc age agg agi agn ago agp ags ai- aia aic aie aig aii ain aio aip ais an- ana anc ane ang ani ann ano anp ans aoa aoc aoe aog aoi aon aoo aop aos ap- apa apc ape apg api apn apo app aps as- asa asc ase asg asi asn aso asp ass c-- caa cac cae cag cai can cao cap cas cca ccc cce ccg cci ccn cco ccp ccs ce- cea cec cee ceg cei cen ceo cep ces cga cgc cge cgg cgi cgn cgo cgp cgs ci- cia cic cie cig cii cin cio cip cis cn- cna cnc cne cng cni cnn cno cnp cns co- coa coc coe cog coi con coo cop cos cpa cpc cpe cpg cpi cpn cpo cpp cps csa csc cse csg csi csn cso csp css eaa eac eae eag eai ean eao eap eas ec- eca ecc ece ecg eci ecn eco ecs eea eec eee eeg een eeo eep ees ega egc ege egg egi egn ego egp egs eia eic eie eig eii ein eio eip eis en- ena enc ene eng eni enn eno enp ens eo- eoa eoc eoe eog eoi eon eoo eop eos ep- epa epc epe epg epi epn epo epp eps es- esa esc ese esg esi esn eso esp ess g-p gaa gac gae gag gai gan gao gap gas gca gcc gce gcg gci gcn gco gcp gcs ge- gea gec gee geg gei gen geo gep ges gga ggc ggg ggi ggn ggo ggp ggs gia gic gie gig gii gin gio gip gis gna gnc gne gni gnn gno gnp gns goa goc goe gog goi gon goo gop gos gpa gpc gpe gpg gpi gpn gpo gpp gps gsa gsc gse gsg gsi gsn gso gsp gss ia- iaa iac iae iag iai ian iao iap ias ica icc ice icg ici icn ico icp ics ie- iea iec iee ieg iei ien iep ies iga igc ige igg igi ign igo igp igs iia iic iie iii iin iio iip iis in- ina inc ine ing ini inn ino inp ins io- ioa ioc ioe iog ioi ion ioo iop ios ipa ipc ipe ipg ipi ipn ipo ipp ips is- isa isc ise isg isi isn iso isp iss n-i naa nac nae nag nai nan nao nap nas nca ncc nce ncg nci ncn nco ncp ncs ne- nea nec nee neg nei nen neo nep nes nga ngc nge ngg ngi ngn ngo ngp ngs nia nic nie nig nii nin nio nip nis nna nnc nne nng nni nnn nno nnp nns no- noa noc noe nog noi non noo nop nos npa npc npe npg npi npn npo npp nps nsa nsc nse nsg nsi nsn nso nsp nss o-i oaa oac oae oag oai oan oao oap oas oc- oca occ ocg oci ocn oco ocp ocs oea oec oee oeg oei oen oeo oep oes oga ogc oge ogg ogi ogn ogo ogp ogs oia oic oie oii oin oio oip ois on- ona onc one ong oni onn ono onp ons oo- ooa ooc oog ooi oon ooo oop oos op- opa opc ope opg opi opn opo opp ops os- osa osc ose osg osi osn oso osp oss p-p paa pac pae pag pai pan pao pap pas pca pcc pce pcg pci pcn pco pcp pcs pea pec pee peg pei pen peo pep pes pga pgc pge pgg pgi pgn pgo pgp pgs pia pic pie pig pii pin pio pip pis pn- pna pnc pne png pni pnn pno pnp pns poa poc poe pog poi pon poo pop pos ppa ppc ppe ppg ppi ppn ppo ppp pps ps- psa psc pse psg psi psn pso psp pss saa sac sae sag sai san sao sap sas sca scc sce scg sci scn sco scp scs se- sea sec see seg sei sen seo sep ses sga sgc sge sgg sgi sgn sgo sgp sgs sia sic sie sig sii sin sio sip sis sna snc sne sng sni snn sno snp sns soa soc soe sog soi son soo sop sos spa spc spe spg spi spn spo spp sps ss- ssa ssc sse ssg ssi ssn sso ssp sss