#include <bits/stdc++.h>
using namespace std;
using LL = long long;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<LL>;
using VVL = vector<VL>;
using VD = vector<double>;
using VVD = vector<VD>;
using PII = pair<int, int>;
using PDD = pair<double, double>;
using PLL = pair<LL, LL>;
using VPII = vector<PII>;
template <typename T>
using VT = vector<T>;
template <typename T>
inline bool chmax(T &a, T b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}
template <typename T>
inline bool chmin(T &a, T b) {
  if (a > b) {
    a = b;
    return true;
  }
  return false;
}
const int INF = 1e9;
const int MOD = INF + 7;
const LL LLINF = 1e18;
int main(void) {
  string s;
  cin >> s;
  const string k = "keyence";
  int now = 0;
  int cnt = 0;
  for (int(i) = 0; (i) < (s.size()); (i)++) {
    if (now == k.size()) break;
    if (s[i] == k[now]) {
      now++;
    } else {
      while (i < s.size() && s[i] != k[now]) {
        i++;
      }
      if (i < s.size()) {
        now++;
        cnt++;
      }
    }
  }
  if (now == k.size() && cnt < 2)
    cout << "YES" << endl;
  else
    cout << "NO" << endl;
}
