import java.util.*;

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

        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();
        int X = sc.nextInt();

        if (A == X || B == X || C == X) {
            System.out.println("Yes");
        } else {
            System.out.println("No");
        }
    }
}
import java.util.*;

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

        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();
        int X = sc.nextInt();

        if (A == X || B == X || C == X) {
            System.out.println("Yes");
        } else {
            System.out.println("No");
        }
    }
}