import java.util.Scanner;
import java.util.Arrays;

public class Main{
public static void main(String[] args){
Scanner scan=new Scanner(System.in);
int a=scan.nextInt();
int b=scan.nextInt();
int c=scan.nextInt();

int sum=0;
if(a==b&&a!=c){
  sum=1;
}else if(a==c&&a!=b){
  sum=1;
}else if(b==c&&a!=b){
  sum=1;
}
  
if(sum==1){
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