import java.util.*;

public class Main {
	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		String ans[] = { "Yes", "No" };
		int a = sc.nextInt(), b = sc.nextInt(), c = sc.nextInt();
		sc.close();
		int an = ((a == b) ? (a != c) ? 0 : 1 : (a == c) ? 0 : (b == c) ? 0 : 1);
		System.out.println(ans[an]);
	}
}

/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