/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
public class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		Set<Integer> map = new HashSet<Integer>();
		map.add(a);
		int count = 0;
		if(map.contains(b)){
			count++;
		}else map.add(b);
		if(map.contains(c)){
			count++;
		}else map.add(c);
		if(count == 1){
			System.out.println("Yes");
		}else System.out.println("No");
		
		// your code goes here
	}
}
/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