import java.util.*;

public class Main {
    private static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) throws Exception {
        String s = sc.next();
        String c = sc.next();
        
        int is = Integer.valueOf(s.replaceAll("\\.", ""));
        int ic = Integer.valueOf(c.replaceAll("\\.", ""));
        
        if (ic <= is) {
            System.out.println("YES");
        } else {
            System.out.println("NO");
        }
    }
}