-ic -ol c-- ccc ccg cci ccl cco cct cgc cgg cgi cgl cgo cgt ci- cic cig cii cil cio cit cl- clc clg cli cll clo clt co- coc cog coi col coo cot ctc ctg cti ctl cto ctt gcc gcg gci gcl gco gct ggc ggg ggi ggo ggt gic gig gii gil gio git glc glg gli gll glo glt goc gog goi gol goo got gtc gtg gti gtl gto gtt icc icg ici icl ico ict igc igg igi igl igo igt iic iii iil iio iit il- ilc ilg ili ill ilo ilt io- ioc iog ioi iol ioo iot itc itg iti itl ito itt lcc lcg lci lcl lco lct lgc lgg lgi lgl lgo lgt lic lig lii lil lio lit llc llg lli lll llo llt loc log loi lol loo lot ltc ltg lti ltl lto ltt o-i oc- occ ocg oci ocl oco oct ogc ogg ogi ogl ogo ogt oic oii oil oio oit olc olg oli oll olo olt oo- ooc oog ooi ool ooo oot ot- otc otg oti otl oto ott tcc tcg tci tcl tco tct tgc tgg tgi tgl tgo tgt tic tig tii til tio tit tlc tlg tli tll tlo tlt to- toc tog toi tol too tot ttc ttg tti ttl tto ttt