#include <iostream>
#include <string>
using namespace std;
int main(){
  string a;
  cin>>a;
  size_t b=a.length();
  if(a.find("k")!=-1&&a.find("eyence")!=-1&&a.rfind("e")+1==b)
      cout<<"YES"<<endl;
  else if(a.find("ke")!=-1&&a.find("yence")!=-1&&a.rfind("e")+1==b)
      cout<<"YES"<<endl;
  else if(a.find("key")!=-1&&a.find("ence")!=-1&&a.rfind("e")+1==b)
      cout<<"YES"<<endl;
  else if(a.find("keye")!=-1&&a.find("nce")!=-1&&a.rfind("e")+1==b)
      cout<<"YES"<<endl;
  else if(a.find("keyen")!=-1&&a.find("ce")!=-1&&a.rfind("e")+1==b)
      cout<<"YES"<<endl;
  else if(a.find("keyenc")!=-1&&a.find("e")!=-1&&a.rfind("e")+1==b)
      cout<<"YES"<<endl;
  else if(a.find("keyence")!=-1)
      cout<<"YES"<<endl;
  else if(a.find("k")!=0&&&a.rfind("e")+1==b)
    cout<<"NO"<<endl;
  else
    cout<<"NO"<<endl;
}