<?php

$sc = new Scanner();

$S = $sc->next();
$S_len = strlen($S);

$str = 'keyence';
$l = 7;

$s_index = 0;
$index = 0;
$f = false;
for($i = 0; $i < 7; $i++) {
    $c = $str[$i];
    if ($f) {
        break;
    }
    $s_index = $index;
    while($c !== $S[$index++] && $index < $S_len) {
        $t .= $S[$index-1];
        $f = true;
    }
} 
if (substr($S, 0, $s_index) . substr($S, $index-1) === $str) {
    echo 'YES' . PHP_EOL;
} else {
    echo 'NO' . PHP_EOL;
}


class Scanner {
    private $arr = [];
    private $count = 0;
    private $pointer = 0;
    public function next() {
        if($this->pointer >= $this->count) {
            $str = trim(fgets(STDIN));
            $this->arr = explode(' ', $str);
            $this->count = count($this->arr);
            $this->pointer = 0;
        }
        $result = $this->arr[$this->pointer];
        $this->pointer++;
        return $result;
    }
    public function hasNext() {
        return $this->pointer < $this->count;
    }
    public function nextInt() {
        return (int)$this->next();
    }
    public function nextDouble() {
        return (double)$this->next();
    }
}
