#include<bits/stdc++.h>
using namespace std;
int main()
{
   string s,ss;
   cin>>ss;

    if(ss.size()<=7)
    {
        if(ss="keyence") cout<<"YES\n";
        else cout<<"NO";
        return 0;
    }
   for(int i=0;i<ss.size()-6;i++)
   {
       s=ss;
       s.erase(i,s.size()-7);

       if(s=="keyence")
       {
           cout<<"YES\n";
            return 0;
       }
   }

   cout<<"NO\n";
   return 0;

}
