#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  cin >> s;
  string t = "keyence";
  int i = 0;
  while (s[i++] == t[0] && !t.empty()) t = t.substr(1);
  s = s.size() - 1;
  while (s[i--] == t[t.size() - 1] && !t.empty()) t = t.substr(0, t.size() - 1);
  if (t.empty())
    cout << "YES";
  else
    cout << "NO";
}
