//

import java.util.*;

class Main {
	static Scanner sc = new Scanner(System.in);
	public static void main(String[] args) {
		
		int[] start = {1989, 1, 8};
		int[] end = {2019, 4, 30};
		int[] now = {sc.nextInt(), sc.nextInt(), sc.nextInt()};
		
		boolean F = false;
		for (int i=0; i<3; i++) {
			if (start[i]<now[i] && now[i]<end[i]) {
				F = true; break;
			}
			else if (start[i]==now[i] || now[i]==end[i]) {
				if (i == 2) {
					F = true; break;
				}
			}
			else if (now[i]<start[i] || end[i]<now[i]) {
				break;
			}
		}
		
		System.out.println(F?"Yes":"No");
		
	}
}