import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
	// write your code here
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        if(a==b){
            if(c != a)
                System.out.println("Yes");
            else
                System.out.println("No");
        } else if(a==c){
            if(b != a)
                System.out.println("Yes");
            else
                System.out.println("No");
        } else if(b==c){
            if(a != b)
                System.out.println("Yes");
            else
                System.out.println("No");

        } 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