-ic c-- ccc ccf cci cco cct cfc cff cfi cfo cft ci- cic cif cii cio cit co- coc cof coi coo cot coy ctc ctf cti cto ctt cty cyc cyf cyo cyt fcc fcf fci fco fct fcy ffc fff ffi ffo fft ffy fic fif fii fit foc fof foi foo fot foy ftc ftf fti fto ftt fty fy- fyc fyi fyo i-f icc icf ici ico ict icy ifc iff ifi ifo ift ify iic iif iii iio iit io- ioc iof ioi ioo iot itc itf iti ito itt ity iyc iyo iyt iyy o-i oc- occ ocf oci oco oct of- ofc off ofi ofo oft oic oif oii oio oit oo- ooc oof ooi ooo oot ot- otc otf oti oto ott oyi oyo tcc tcf tci tco tct tfc tff tfi tfo tft tic tif tii tio tit tiy to- toc tof toi too tot toy ttc ttf tti tto ttt tty tyc tyf tyo tyt ycc ycf yci yco ycy yfc yff yft yif yii yio yit yoc yof yoi yoo yot yoy ytc ytf yto ytt yyc yyf yyt yyy