#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  cin >> s;
  string t = "keyence";
  bool first = false;
  for (int i = 1; i <= 7; i++) {
    string t1 = t.substr(0, i);
    string t2 = t.substr(i, 7 - i);
    for (int j = 0; j < s.size() - i + 1; j++) {
      if (s.substr(j, i) == t1 && !first) {
        first = true;
        if (i == 7) {
          cout << "YES" << endl;
          return 0;
        }
        continue;
      }
      if (s.substr(j, 7 - i) == t2 && first) {
        cout << "YES" << endl;
        return 0;
      }
    }
  }
  cout << "NO" << endl;
  return 0;
}
