import java.util.Scanner;
class Main{
  public static void main(String[] args){
    Scanner stdIn = new Scanner(System.in);
    
    int a = stdIn.nextInt();
    int b = stdIn.nextInt();
    int c = stdIn.nextInt();
    
    if (a == b) {
      if (b == c) {
        System.out.println("No");
      } else {
        System.out.println("Yes");
      }
    } else if (b == c) {
      if (a == b) {
        System.out.println("No");
      } else {
        System.out.println("Yes");
      }
    } else if (a == c) {
      if (a == b) {
        System.out.println("No");
      } else {
        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