c-- ccc ccf ccg ccr cct cfc cff cfg cfr cft cgc cgg cgr cgt crc crf crg crr crt ctc ctf ctg ctr ctt fcc fcf fcg fcr fct ffc fff ffg ffr fft fgc fgf fgg fgr fgt frc frf frg frr frt ftc ftf ftg ftr ftt gcc gcf gcg gcr gct gfc gff gfr gft ggc ggg ggr ggt grc grf grg grr grt gtc gtf gtg gtr gtt rcc rcf rcg rcr rct rfc rff rfg rfr rft rgc rgf rgg rgr rgt rrc rrf rrg rrr rrt rtc rtf rtg rtr rtt tcc tcf tcg tcr tct tfc tff tfg tfr tft tgc tgf tgg tgr tgt trc trf trg trr trt ttc ttf ttg ttr ttt