백준 #17863번 FYI

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		if(n / 10000 == 555) {
			System.out.println("YES");
		}else {
			System.out.println("NO");
		}
		sc.close();
	}
}