-ic c-- ccc cci cco ccp ccs cct ci- cic cii cio cip cis cit co- coc coi coo cop cos cot coy cpc cpi cpo cpp cps cpt csc csi cso csp css cst csy ctc cti cto ctp cts ctt cty cyc cyo cyp cys cyt icc ici ico icp ics ict icy iic iii iio iip iis iit io- ioc ioi ioo iop ios iot ipc ipi ipo ipp ips ipt ipy is- isc isi iso isp iss ist isy itc iti ito itp its itt ity iyc iyo iys iyt iyy o-i oc- occ oci oco ocp ocs oct oic oii oio oip ois oit oo- ooc ooi ooo oop oos oot op- opc opi opo opp ops opt opy os- osc osi oso osp oss ost ot- otc oti oto otp ots ott oyi oyo oys p-p pcc pci pco pcp pcs pct pic pii pio pip pis pit poc poi poo pop pos pot poy ppc ppi ppo ppp pps ppt ps- psc psi pso psp pss pst psy pt- ptc pti pto ptp pts ptt pty py- pyc pyo pys pyt scc sci sco scp scs sct sic sii sio sip sis sit soc soi soo sop sos sot soy spc spi spo spp sps spt spy ss- ssc ssi sso ssp sss sst stc sti sto stp sts stt sty sy- syc syi syp sys syt tcc tci tco tcp tcs tct tic tii tio tip tis tit tiy to- toc toi too top tos tot toy tpc tpi tpo tpp tps tpt tsc tsi tso tsp tss tst tsy ttc tti tto ttp tts ttt tty tyc tyo typ tys tyt ycc yci yco ycp ycs ycy yii yio yip yis yit yoc yoi yoo yop yos yot yoy ypo yps ysc ysi yso ysp yss yst ysy ytc yto ytp yts ytt yyc yys yyt yyy