#include <bits/stdc++.h>
int main() {
  const char *KEY = "keyence";
  char s[100];
  char *pt;
  char *pt2;
  char *pt3;
  int i;
  int num;
  scanf("%s", s);
  num = strlen(s);
  pt3 = s;
  while (1) {
    if (0 == strlen(pt3)) break;
    if (0 == (pt = strstr(pt3, "keyence"))) {
      printf("NO\n");
      return 0;
    }
    for (i = 0;; i++) {
      if (*pt == KEY[i]) {
        pt++;
      } else {
        break;
      }
    }
    if (i >= 7) {
      printf("YES\n");
      return 0;
    }
    if (0 == (pt2 = strstr(pt, &KEY[i]))) {
      printf("NO\n");
      return 0;
    }
    for (;; i++) {
      if (*pt2 == KEY[i]) {
        pt2++;
      } else {
        break;
      }
    }
    if (i >= 7) {
      printf("YES\n");
      return 0;
    }
    pt3 = pt2;
  }
  printf("NO\n");
  return 0;
}
