import java.util.*;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		String verA = sc.next();
		String verB = sc.next();
		
		String[] arrayVerA = verA.split("\\.", 0);
		String[] arrayVerB = verB.split("\\.", 0);
		
		String plainVerA = "", plainVerB = "";
		
		for(int i = 0; i < arrayVerA.length; i++) {
			plainVerA+=arrayVerA[i];
			plainVerB+=arrayVerB[i];
		}
		
		int intPlainVerA = Integer.parseInt(plainVerA);
		int intPlainVerB = Integer.parseInt(plainVerB);
			
		if(intPlainVerA >= intPlainVerB) {
			System.out.println("YES");
		} else {
			System.out.println("NO");
		}
	}
}