import java.util.HashSet;
import java.util.Scanner;

public class Main{

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		String inputString=sc.nextLine();
		String[] inputstrArray = inputString.split(" ");
		int input1 = Integer.parseInt(inputstrArray[0]);
		int input2 = Integer.parseInt(inputstrArray[1]);
		int input3 = Integer.parseInt(inputstrArray[2]);

		HashSet<Integer> set = new HashSet<Integer>();
		set.add(input1);set.add(input2);set.add(input3);

		switch(set.size()) {
		case 1:
		System.out.println("No");
		break;
		case 2:
		System.out.println("Yes");
		break;
		case 3:
		System.out.println("No");
		break;

		}
	}
}
/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