-ic a-a a-c a-i aaa aac aag aai aan aao aap aas ac- aca acc acg aci acn aco acp acs ag- aga agc agg agi agn ago agp ags ai- aia aic aig aii ain aio aip ais an- ana anc ang ani ann ano anp ans aoa aoc aog aoi aon aoo aop aos ap- apa apc apg api apn apo app aps as- asa asc asg asi asn aso asp ass c-- caa cac cag cai can cao cap cas cca ccc ccg cci ccn cco ccp ccs cga cgc cgg cgi cgn cgo cgp cgs ci- cia cic cig cii cin cio cip cis cn- cna cnc cng cni cnn cno cnp cns co- coa coc cog coi con coo cop cos cpa cpc cpg cpi cpn cpo cpp cps csa csc csg csi csn cso csp css g-p gaa gac gag gai gan gao gap gas gca gcc gcg gci gcn gco gcp gcs gga ggc ggg ggi ggn ggo ggp ggs gia gic gig gii gin gio gip gis gna gnc gni gnn gno gnp gns goa goc gog goi gon goo gop gos gpa gpc gpg gpi gpn gpo gpp gps gsa gsc gsg gsi gsn gso gsp gss ia- iaa iac iag iai ian iao iap ias ica icc icg ici icn ico icp ics iga igc igg igi ign igo igp igs iia iic iii iin iio iip iis in- ina inc ing ini inn ino inp ins io- ioa ioc iog ioi ion ioo iop ios ipa ipc ipg ipi ipn ipo ipp ips is- isa isc isg isi isn iso isp iss n-i naa nac nag nai nan nao nap nas nca ncc ncg nci ncn nco ncp ncs nga ngc ngg ngi ngn ngo ngp ngs nia nic nig nii nin nio nip nis nna nnc nng nni nnn nno nnp nns no- noa noc nog noi non noo nop nos npa npc npg npi npn npo npp nps nsa nsc nsg nsi nsn nso nsp nss o-i oaa oac oag oai oan oao oap oas oc- oca occ ocg oci ocn oco ocp ocs oga ogc ogg ogi ogn ogo ogp ogs oia oic oii oin oio oip ois on- ona onc ong oni onn ono onp ons oo- ooa ooc oog ooi oon ooo oop oos op- opa opc opg opi opn opo opp ops os- osa osc osg osi osn oso osp oss p-p paa pac pag pai pan pao pap pas pca pcc pcg pci pcn pco pcp pcs pga pgc pgg pgi pgn pgo pgp pgs pia pic pig pii pin pio pip pis pn- pna pnc png pni pnn pno pnp pns poa poc pog poi pon poo pop pos ppa ppc ppg ppi ppn ppo ppp pps ps- psa psc psg psi psn pso psp pss saa sac sag sai san sao sap sas sca scc scg sci scn sco scp scs sga sgc sgg sgi sgn sgo sgp sgs sia sic sig sii sin sio sip sis sna snc sng sni snn sno snp sns soa soc sog soi son soo sop sos spa spc spg spi spn spo spp sps ss- ssa ssc ssg ssi ssn sso ssp sss