#include <bits/stdc++.h>
using namespace std;
const int INF = 100100100;
const long long LINF = 1e18 + 100;
const int MOD = 1e9 + 7;
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  ;
  string S;
  cin >> S;
  int N = S.size();
  string O = "keyence";
  int j = 0;
  for (int i = 0; i < (N); i++) {
    if (j < O.size() && S[i] == O[j]) j++;
  }
  cout << (j == O.size() ? "YES" : "NO") << endl;
}
