-ic c-- ccc ccd cce cci cck ccu ccx cdc cdd cde cdi cdk cdq cdu cdx ce- cec ced cee cei cek ceq ceu cex ci- cic cid cie cii cik ciq ciu cix ckc ckd cki ckx cqc cqd cqi cuc cud cue cui cuk cuq cuu cxc cxi cxk cxx dcc dcd dce dci dck dcu dcx ddc ddd dde ddi ddk ddq ddu ddx de- dec ded dee dei dek deq deu dex di- dic did die dii dik diq diu dix dkc dke dki dkk dku dkx dqe duc dud due dui duk dux dxc dxd dxi dxx ec- ecc ecd ece eci eck ecq ecu ecx ed- edc edd ede edi edk edu edx eec eed eee eek eex eic eid eie eii eik eiu eix ekc ekd eke eki eku eqe eqq equ eu- euc eud eue eui eux ex- exc exd exe exi exu exx i-d icc icd ice ici ick icq icu idc idd ide idi idk idq idu idx ie- iec ied iee iei iek iex iic iid iie iii iiu iix ikc ike iki ikk iku ikx iqc iqd iqe iqu iu- iuc iud iue iui ixc ixe ixi kcc kcd kce kci kck kcu kcx kdc kde kdk kdu kdx ke- kec ked kee kei kek kex kic kid kie kii kik kiu kix kkc kke kki kkk kku kuc kud kue kui kuk kuu qcc qcd qci qec qed qee qex qic qid qie qik qiu qix qki qqk qqq qqu qu- qud que qui qux qxe ucc ucd uce uci uck ucu udc udd ude udi udk udu udx uec ued uee uei uic uid uie uii uiq uiu ukc uke uki ukk uku uuc uue uuu uxc uxu xcd xci xcx xdc xde xdi xdk xed xee xeq xeu xex xic xie xii xiu xix xke xue xui xxi xxx