import java.util.Scanner;

public class Main
{
    public static void main(String[] args)
    {
        Scanner s = new Scanner(System.in);
        int a = s.nextInt();
        int b = s.nextInt();
        int c = s.nextInt();
        if(a==b&&a!=c)
            System.out.println("Yes");
        else if(b==c&&a!=c)
            System.out.println("Yes");
        else if(a==c&&a!=b)
            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