import java.util.*;
public class Main {
public static void main(String[] args){
	Scanner sc = new Scanner(System.in);
	int a, b, c;
  	a = sc.nextInt();
  	b = sc.nextInt();
  	c = sc.nextInt();
  	
  	if((a == b)&&(a == c)){
      	System.out.println("No");
      	System.exit(0);
    }
  	if((a == b)||(a == c)||(b == c)){
     	System.out.println("Yes");
      	System.exit(0);
    }
  	System.out.println("No");
  	System.exit(0);
	}
}
/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