#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int a, b, c, d, n, m, tmp = 0;
  string str, keye = "keyence";
  cin >> str;
  n = str.length();
  for (int i = 0; i <= 6; i++) {
    for (int j = 0; j < n - 6; j++) {
      for (int k = j + i; k < n + i - 6; k++) {
        tmp = 0;
        for (int p = 0; p < 7; p++) {
          if (p < i) {
            if (str[j + p] == keye[p]) {
              tmp++;
            }
          } else {
            if (str[k + p - i] == keye[p]) {
              tmp++;
            }
          }
        }
        if (tmp == 7) {
          cout << "YES";
          return 0;
        }
      }
    }
  }
  cout << "NO";
}
