import java.util.Scanner;
 
public class Main {
 
	public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);

        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        
        String res = "No";

        if((a == b && a != c)||(b == c && b != a)||(c == a && c != b)){res = "Yes";}

        System.out.println(res);

        sc.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