import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		try(Scanner sc = new Scanner(System.in)) {
			
			int a = sc.nextInt();
			int b = sc.nextInt();
			int c = sc.nextInt();
			
			List<Integer> lst = new ArrayList<Integer>();
			lst.add(a);
			lst.add(b);
			lst.add(c);
			
			long count = lst.stream().distinct().count();
			
			System.out.println(count == 2 ? "Yes" : "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