#include <bits/stdc++.h>
int main() {
  int cnt;
  char str[101] = {
      0,
  };
  char keyence[] = "keyence";
  int i;
  int m_cnt = 0;
  int skip = 0;
  int m_2nd = 0;
  int len;
  cnt = scanf("%s", str);
  len = strlen(str);
  for (i = 0; i < len; i++) {
    if (keyence[m_cnt] == str[i]) {
      m_cnt++;
      if (skip > 0) {
        m_2nd++;
      }
    } else {
      if (m_2nd != 0) {
        printf("NO");
        return 0;
      }
      skip++;
    }
    if (m_cnt == 7) {
      printf("YES");
      return 0;
    }
  }
  printf("NO");
  return 0;
}
