-ic a-a a-c a-i aaa aac aag aai aao aap aas ac- aca acc acg aci aco acp acs ag- aga agc agg agi ago agp ags ai- aia aic aig aii aio aip ais aoa aoc aog aoi aoo aop aos ap- apa apc apg api apo app aps as- asa asc asg asi aso asp ass c-- caa cac cag cai cao cap cas cca ccc ccg cci cco ccp ccs cga cgc cgg cgi cgo cgp cgs ci- cia cic cig cii cio cip cis co- coa coc cog coi coo cop cos cpa cpc cpg cpi cpo cpp cps csa csc csg csi cso csp css g-p gaa gac gag gai gao gap gas gca gcc gcg gci gco gcp gcs gga ggc ggg ggi ggo ggp ggs gia gic gig gii gio gip gis goa goc gog goi goo gop gos gpa gpc gpg gpi gpo gpp gps gsa gsc gsg gsi gso gsp gss ia- iaa iac iag iai iao iap ias ica icc icg ici ico icp ics iga igc igg igi igo igp igs iia iic iii iio iip iis io- ioa ioc iog ioi ioo iop ios ipa ipc ipg ipi ipo ipp ips is- isa isc isg isi iso isp iss o-i oaa oac oag oai oao oap oas oc- oca occ ocg oci oco ocp ocs oga ogc ogg ogi ogo ogp ogs oia oic oii oio oip ois oo- ooa ooc oog ooi ooo oop oos op- opa opc opg opi opo opp ops os- osa osc osg osi oso osp oss p-p paa pac pag pai pao pap pas pca pcc pcg pci pco pcp pcs pga pgc pgg pgi pgo pgp pgs pia pic pig pii pio pip pis poa poc pog poi poo pop pos ppa ppc ppg ppi ppo ppp pps ps- psa psc psg psi pso psp pss saa sac sag sai sao sap sas sca scc scg sci sco scp scs sga sgc sgg sgi sgo sgp sgs sia sic sig sii sio sip sis soa soc sog soi soo sop sos spa spc spg spi spo spp sps ss- ssa ssc ssg ssi sso ssp sss