import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner kb = new Scanner(System.in);
		String kn = "No";
		int i = kb.nextInt();
		int j = kb.nextInt();
		int k = kb.nextInt();
		if (i == j && j != k) {
			kn = "Yes";
		} else if (i == k && i != j) {
			kn = "Yes";
		} else if (j == k && k != i) {
			kn = "Yes";
		}

		System.out.println(kn);
		kb.close();
	}

}

/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