#include<iostream>
#include<string.h>
using namespace std;


int main(void)
{
    int i=0,j=0,count=0;
    string s,a("keyence");
    cin>>s;

    while(i<7||s[j]!='\0'){
        if(s[j]==a[i]){ i++; j++}
        else {j++;count++;}
    }
    if(i==7){cout<<"YES"<<endl;}else cout<<"NO"<<endl;
    return 0;
}
