#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 = 0, flag = 0, t, p;
  for (int i = 0; i < len; i++) {
    l = 0;
    while (i < len && l < 7) {
      if (a[i] == b[l]) {
        i++;
        l++;
      } else
        break;
    }
    if (l >= 7) {
      flag = 1;
      break;
    }
    p = l;
    for (int j = i; j < len; j++) {
      if (a[j] == b[l]) {
        t = j;
        while (t < len && l < 7) {
          if (a[t] == b[l])
            t++, l++;
          else
            break;
        }
        if (l >= 7)
          break;
        else
          l = p;
      }
    }
    if (l >= 7) {
      flag = 1;
      break;
    }
  }
  if (flag == 1)
    printf("YES\n");
  else
    printf("NO\n");
  return 0;
}
