import java.util.*;

public class Main {

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

        Set<String> set = new HashSet<>();
        set.add(scanner.next());
        set.add(scanner.next());
        set.add(scanner.next());

        System.out.println(set.size() ==2 ? "Yes" : "No");

    }

} import java.util.*; util.* java public class Main {

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

        Set<String> set = new HashSet<>();
        set.add(scanner.next());
        set.add(scanner.next());
        set.add(scanner.next());

        System.out.println(set.size() ==2 ? "Yes" : "No");

    }

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

        Set<String> set = new HashSet<>();
        set.add(scanner.next());
        set.add(scanner.next());
        set.add(scanner.next());

        System.out.println(set.size() ==2 ? "Yes" : "No");

    } main {
        Scanner scanner = new Scanner(System.in);

        Set<String> set = new HashSet<>();
        set.add(scanner.next());
        set.add(scanner.next());
        set.add(scanner.next());

        System.out.println(set.size() ==2 ? "Yes" : "No");

    } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) Set<String> set = new HashSet<>(); set new HashSet<>() set.add(scanner.next()) set.add set scanner.next() scanner.next scanner set.add(scanner.next()) set.add set scanner.next() scanner.next scanner set.add(scanner.next()) set.add set scanner.next() scanner.next scanner System.out.println(set.size() ==2 ? "Yes" : "No") System.out.println System.out System System.out set.size() ==2 ? "Yes" : "No" set.size() ==2 set.size() set.size set 2 "Yes" "No" String[] args args public class Main {

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

        Set<String> set = new HashSet<>();
        set.add(scanner.next());
        set.add(scanner.next());
        set.add(scanner.next());

        System.out.println(set.size() ==2 ? "Yes" : "No");

    }

} public class Main {

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

        Set<String> set = new HashSet<>();
        set.add(scanner.next());
        set.add(scanner.next());
        set.add(scanner.next());

        System.out.println(set.size() ==2 ? "Yes" : "No");

    }

} Main
import java.util.*;

public class Main {

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

        Set<String> set = new HashSet<>();
        set.add(scanner.next());
        set.add(scanner.next());
        set.add(scanner.next());

        System.out.println(set.size() ==2 ? "Yes" : "No");

    }

}