#include <bits/stdc++.h>
using namespace std;
template <typename T>
void view(T e) {
  std::cout << e << std::endl;
}
template <typename T>
void view(const std::vector<T>& v) {
  for (const auto& e : v) {
    std::cout << e << " ";
  }
  std::cout << std::endl;
}
template <typename T>
void view(const std::vector<std::vector<T> >& vv) {
  for (const auto& v : vv) {
    view(v);
  }
}
template <class T>
bool chmax(T& a, const T& b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
bool chmin(T& a, const T& b) {
  if (b < a) {
    a = b;
    return 1;
  }
  return 0;
}
const int MOD = 1000000007;
const int INF = 1e9;
const int mod = 1000000007;
const int inf = 1e9;
int dx[4] = {1, -1, 0, 0};
int dy[4] = {0, 0, 1, -1};
int ddx[8] = {1, 1, 1, -1, -1, -1, 0, 0};
int ddy[8] = {0, 1, -1, 0, 1, -1, 1, -1};
int main() {
  string s;
  cin >> s;
  string k = "keyence";
  int f = 0;
  bool ok = false;
  for (int i = 0; i < (int)s.size(); i++) {
    if (k[f] == s[i]) f++;
    if (f == 7) {
      ok = true;
      break;
    }
  }
  if (ok)
    cout << "YES" << endl;
  else
    cout << "NO" << endl;
}
