#include <bits/stdc++.h>
const long long mod = 1e9 + 7;
const long long inf = 0x3f3f3f3f;
using namespace std;
int main() {
  char a[101], b[101] = {0};
  scanf("%s", a);
  for (int i = 0; a[i]; i++) {
    if (a[i] >= 'A' && a[i] <= 'Z') a[i] = a[i] - 'A' + 'a';
    b[i] = a[i];
  }
  int n = strlen(a);
  for (int i = 0; i < n; i++)
    for (int j = i + 1; j < n; j++) {
      strcpy(a, b);
      strcpy(a + i, a + j);
      if (strcmp(a, "keyence") == 0) {
        printf("YES\n");
        return 0;
      }
    }
  printf("NO\n");
  return 0;
}
