#include <bits/stdc++.h>
using namespace std;
char a[110], b[110];
int main() {
  scanf("%s", a);
  int len = strlen(a);
  strcpy(b, "keyence");
  int l, flag = 0, t, p, q;
  for (int i = 0; i < len; i++) {
    if (a[i] == 'k') {
      t = i, l = 0;
      while (a[t] == b[l] && t < len && l < 7) t++, l++;
      if (l == 7) {
        flag = 1;
        break;
      }
      p = t, q = l;
      while (i < len) {
        while (a[p] != b[l]) p++;
        t = p;
        while (a[t] == b[l] && t < len && l < 7) t++, l++;
        if (l == 7)
          break;
        else
          q = l;
      }
      if (l == 7) {
        flag = 1;
        break;
      }
    }
  }
  if (flag == 1)
    printf("YES\n");
  else
    printf("NO\n");
  return 0;
}
