import java.util.*;

public class Main {
  public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    String A = sc.next();
    String B = sc.next();
    String C = sc.next();
    
    if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
} import java.util.*; util.* java public class Main {
  public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    String A = sc.next();
    String B = sc.next();
    String C = sc.next();
    
    if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
} Main public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    String A = sc.next();
    String B = sc.next();
    String C = sc.next();
    
    if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  } main {
    Scanner sc = new Scanner(System.in);
    String A = sc.next();
    String B = sc.next();
    String C = sc.next();
    
    if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String A = sc.next(); A sc.next() sc.next sc String B = sc.next(); B sc.next() sc.next sc String C = sc.next(); C sc.next() sc.next sc if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    } A.equals(B) && B.equals(C) A.equals(B) A.equals A B B.equals(C) B.equals B C {
      System.out.println("No");
    } System.out.println("No") System.out.println System.out System System.out "No" if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    } A.equals(B) || B.equals(C) || A.equals(C) A.equals(B) || B.equals(C) || A.equals(C) A.equals(B) A.equals A B B.equals(C) B.equals B C A.equals(C) A.equals A C {
      System.out.println("Yes");
    } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
      System.out.println("No");
    } System.out.println("No") System.out.println System.out System System.out "No" String args[] args public class Main {
  public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    String A = sc.next();
    String B = sc.next();
    String C = sc.next();
    
    if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
} public class Main {
  public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    String A = sc.next();
    String B = sc.next();
    String C = sc.next();
    
    if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
} Main
import java.util.*;

public class Main {
  public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    String A = sc.next();
    String B = sc.next();
    String C = sc.next();
    
    if(A.equals(B) && B.equals(C)) {
      System.out.println("No");
    } else if(A.equals(B) || B.equals(C) || A.equals(C)) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
}