import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

public 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();

		Set<Integer> set = new TreeSet<>();
		set.add(A);
		set.add(B);
		set.add(C);

		if(set.size()==2) {
			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