import java.util.Scanner;

public class Main {

    public static void main(String args[]) {
        Scanner scan = new Scanner(System.in);

        int num1 = scan.nextInt();
        int num2 = scan.nextInt();
        int num3 = scan.nextInt();

        int count = 0;

        if(num1 != num2){
            count++;
        }

        if(num2 != num3){
            count++;
        }

        if(num1 != num3){
            count++;
        }

        if(count == 1 || count ==2){
            System.out.println("Yes");
        }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