-ic c-- ccc ccd cci cck cco cct cdc cdd cdi cdk cdo cdt ci- cic cid cii cik cio cit ckc ckd cki cko ckt co- coc cod coi cok coo cot ctc ctd cti ctk cto ctt dcc dcd dci dck dco dct ddc ddd ddi ddk ddo ddt di- dic did dii dik dio dit dkc dki dkk dko dkt doc dod doi dok doo dot dtc dtd dti dtk dto dtt i-d icc icd ici ick ico ict idc idd idi idk ido idt iic iid iii iio iit ikc iki ikk iko ikt io- ioc iod ioi ioo iot itc itd iti itk ito itt k-t kcc kcd kci kck kct kdc kdk kdo kdt kic kid kii kik kio kit kkc kki kkk kkt koc kod koi kok koo kot ktc ktk kto ktt o-i oc- occ ocd oci ock oco oct odc odd odi odo odt oic oid oii oik oio oit okc okd oki okk oko oo- ooc ood ooi ook ooo oot ot- otc otd oti otk oto ott tcc tcd tci tck tco tct tdc tdd tdi tdk tdo tdt tic tid tii tik tio tit tkc tkk tko tkt to- toc tod toi tok too tot ttc ttd tti ttk tto ttt