//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define all(v) v.begin(), v.end()
#define allr(v) v.rbegin(), v.rend()

int main() {
  string s;
  cin >> s;
  string t = "keyence";
  int cnt = 0;
  rep(i, s.size()) {
    if (s[i] == t[cnt]) {
      cnt++;
      if (cnt >= 7) {
        puts("YES");
        return 0;
      }
    }
  }
  puts("NO");
  return 0;
}