import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int[] n =new int[3];
        for(int i = 0;i<3;i++){
            n[i] = sc.nextInt();
        }
        if((n[0]==n[1] && n[1] ==n[2] && n[0] == n[2])
           ||(n[0]!=n[1] && n[1] !=n[2] && n[0] != n[2]) ){
            System.out.println("No");
        }else{
            System.out.println("Yes");
        }
    }
}
/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