kkck kkcs kkda kkdc kkdd kkea kked kkfs kkkk kksa kksd kkse kksf kkss ksab ksac ksaf ksak ksas ksba ksbc ksbs ksca kscb ksce ksck kscs ksdc ksdk ksds ksea ksec ksed ksee ksek ksfa ksfb ksfc ksfe kska kskb kskd kske kskf kskk ksks kssa ksse ksss sa-c saab saac saad saae saaf saak saas saba sabb sabc sabe sabs saca sacc sacd sace sack sacs sada sadb sadc sadd sade sads saeb saek saes safa safb safc safe saff saka sakb sake sakk saks sasa sasc sasd sase sasf sask sass sbaa sbac sbas sbbs sbca sbcc sbcs sbds sbef sbfc sbsa sbsd sbse scaa scab scac scad scaf scak scas scba sccc scce sccs scda scdc scdf scds scea scec scee scfa scfc scfe sck- scsa scsc scsd sdae sdak sdba sdcc sddc sdds sdef sdes sdfc sdsc sdsf sdss se-c se-d se-e se-f se-k se-s seaa seab seac sead seaf seak seas seba sebe sebs sec- seca secc secd sece seck secs seda sede seds seea seeb seec seed seef seek sees sefa seff seka seke sekk sesa sesc sese sess sfas sfba sfbc sfca sfcc sfcs sfdc sfdk sffc sfss skab skac skad skaf sked skee skes skfc sksd skss ssaa ssab ssac ssas ssca sscc ssce sscs ssdc ssdd ssdf ssec ssee sses ssfc sssa sssb sssc sssf ssss