import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sn = new Scanner(System.in);
    
    int A = sn.nextInt();
    int B = sn.nextInt();
    int C = sn.nextInt();
    
    if(( A == B && A != C )
       || ( A == C && A != B )
       || ( B == C && B != A )) {
      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