-ic c-- ccc ccf cci cco ccs cct cfc cff cfi cfo cfs cft ci- cic cif cii cio cis cit co- coc cof coi coo cos cot coy csc csf csi cso css cst csy ctc ctf cti cto cts ctt cty cyc cyf cyo cys cyt fcc fcf fci fco fcs fct fcy ffc fff ffi ffo ffs fft ffy fic fif fii fis fit foc fof foi foo fos fot foy fsc fsf fsi fso fss fst ftc ftf fti fto fts ftt fty fy- fyc fyi fyo i-f icc icf ici ico ics ict icy ifc iff ifi ifo ifs ift ify iic iif iii iio iis iit io- ioc iof ioi ioo ios iot is- isc isf isi iso iss ist isy itc itf iti ito its itt ity iyc iyo iys iyt iyy o-i oc- occ ocf oci oco ocs oct of- ofc off ofi ofo ofs oft oic oif oii oio ois oit oo- ooc oof ooi ooo oos oot os- osc osf osi oso oss ost ot- otc otf oti oto ots ott oyi oyo oys scc scf sci sco scs sct sfc sff sfi sfo sfs sft sic sif sii sio sis sit soc sof soi soo sos sot soy ss- ssc ssf ssi sso sss sst stc stf sti sto sts stt sty sy- syc syi sys syt tcc tcf tci tco tcs tct tfc tff tfi tfo tfs tft tic tif tii tio tis tit tiy to- toc tof toi too tos tot toy tsc tsf tsi tso tss tst tsy ttc ttf tti tto tts ttt tty tyc tyf tyo tys tyt ycc ycf yci yco ycs ycy yfc yff yfs yft yif yii yio yis yit yoc yof yoi yoo yos yot yoy ysc ysi yso yss yst ysy ytc ytf yto yts ytt yyc yyf yys yyt yyy