#include <bits/stdc++.h>
using namespace std;
int main() {
  int l, l1, l2, i, j;
  string s, a;
  cin >> s;
  a = "keyence";
  i = 0;
  l = a.size();
  while (a[i] == s[i]) {
    i++;
  }
  l1 = i;
  i = l - 1;
  j = s.size() - 1;
  while (a[i] == s[j]) {
    i--;
    j--;
  }
  l2 = s.size() - 1 - j;
  if (l1 + l2 == l || s == a)
    cout << "YES";
  else
    cout << "NO";
}
