import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scan = new Scanner(System.in);
		String str = "keyence";
		String test = scan.next();
		char[] strArray = str.toCharArray();
		
		char[] testArray = test.toCharArray();
		
		int strpointer = 0;
		int testpointer = 0;
		
		boolean end = false;
		for(;strpointer < strArray.length;) {
			
			
			for(; testpointer<testArray.length;) {
				if(strArray[strpointer]== testArray[testpointer]) {
					
					testpointer++;
					strpointer++;
					break;
				}else {
					testpointer++;
				}
				
				if(testpointer == testArray.length) {
					end = true;
				}
			}
			
			if(end) {
				break;
			}
			
		}
		
		
		if(strpointer == strArray.length) {
			System.out.println("YES");
		}else {
			System.out.println("NO");
		}
		
	}

}
