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

public class Main {
    public static void main(String[] args) throws Exception {

        Scanner scan = new Scanner(System.in);
        PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
        
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		
		if(a == b && b == c){
		    out.println("No");
		}else if(a != b && b != c && c != a){
		    out.println("No");
		}else{
		    out.println("Yes");
		}
        out.close();
        
    }
}
/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