import java.util.*;
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();
		int count = 0;

		if (a==b) {
			if (b!=c) {
				System.out.println("Yes");
				System.exit(0);
			}
		}
		if (a==c) {
			if (b!=c) {
				System.out.println("Yes");
				System.exit(0);
			}
		}
		if (b==c) {
			if (b!=a) {
				System.out.println("Yes");
				System.exit(0);
			}
		}
		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