import java.util.*;
    public class Main{//Main
          public static void main(String[] args){
             Scanner scanner = new Scanner(System.in);
              int A = scanner.nextInt();
              int B = scanner.nextInt();
              int C = scanner.nextInt();
              if(A==B){
                             if(B==C) System.out.println("No");
                             else System.out.println("Yes");
               }
              else if(A==C){
                             if(B==C) System.out.println("No");
                             else System.out.println("Yes");
               }
              else if(B==C){
                             if(A==C) System.out.println("No");
                             else System.out.println("Yes");
               }
              else System.out.println("No");
}
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz