-ic c-- ccc ccd cci cck cct cdc cdd cdi cdk cdt cdy ci- cic cid cii cik cit ckc ckd cki ckt cky ctc ctd cti ctk ctt cty cyc cyd cyk cyt dcc dcd dci dck dct ddc ddd ddi ddk ddt ddy di- dic did dii dik dit diy dkc dki dkk dkt dtc dtd dti dtk dtt dty dy- dyc dyd dyk dyy i-d icc icd ici ick ict icy idc idd idi idk idt idy iic iid iii iit ikc iki ikk ikt itc itd iti itk itt ity iyc iyt iyy k-t kcc kcd kci kck kct kdc kdk kdt kdy kic kid kii kik kit kkc kki kkk kkt kky ktc ktk ktt kyc kyd kyt tcc tcd tci tck tct tdc tdd tdi tdk tdt tdy tic tid tii tik tit tiy tkc tkk tkt tky ttc ttd tti ttk ttt tty tyc tyd tyt ycc ycd yci ycy ydt ydy yid yii yit yki ykk ytc ytd ytk ytt yyc yyt yyy