import java.util.Scanner;

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();
    
  if(A==B){
      int X=A;
      if(X==C){
        System.out.println("No");//AとB，C同じ
      }else{
        System.out.println("Yes");//AとBが同じでCが違う
      }
   }else if(A==C){
      System.out.println("Yes");//AとCが同じでBが違う
   }else if(B==C){
      System.out.println("Yes");//BとC同じでAが違う
   }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