-ic c-- ccc ccf ccg cci ccr cfc cff cfg cfi cfr cgc cgg cgi cgr cgy ci- cic cif cig cii cir crc crf crg cri crr cry cyc cyf cyg cyr fcc fcf fcg fci fcr fcy ffc fff ffg ffi ffr ffy fgc fgf fgg fgi fgr fic fif fig fii fir frc frf frg fri frr fry fy- fyc fyi gcc gcf gcg gci gcr gfc gff gfi gfr gfy ggc ggg ggi ggr gic gif gig gii gir giy grc grf grg gri grr gry gy- gyf gyr i-f icc icf icg ici icr icy ifc iff ifg ifi ifr ify igc igf igg igi igr igy iic iif iii iir ir- irc irf irg iri irr iry iyc iyr iyy rcc rcf rcg rci rcr rfc rff rfg rfi rfr rgc rgf rgg rgi rgr ric rif rig rii rir riy rrc rrf rrg rri rrr ry- ryc ryf ryg ryr ryy ycc ycf yci ycy yfc yff yfr ygc yif yig yii yir yrc yrf yrg yyc yyf yyg yyy