import java.util.*;

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();
    }
    Arrays.sort(n);
    if((n[0]==n[1]&&n[1]!=n[2])||(n[0]!=n[1]&&n[1]==n[2])){
      System.out.print("Yes");
    }else{
      System.out.print("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