import java.util.*;
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 && A != C){
    	System.out.println("Yes"); 
    }
    else if(A == C && A != B){
    	System.out.println("Yes"); 
    }
    else if(C == B && A != C){
    	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