import java.util.*;

class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int A = Integer.parseInt(sc.next());
		int B = Integer.parseInt(sc.next());
		int C = Integer.parseInt(sc.next());
	
		if((A == B && B == C) || (A != B) && (B != C) && (A!= C)) {
			System.out.println("No");
		} else {
			System.out.println("Yes");
		}
	

	}

}
/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