import java.util.*;
import java.lang.*;
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();
		for( int i=0; i<1; i++ ){
			if( A==B && B!=C ){
				System.out.println("Yes");
				break;
			}
			if( A!=B && B==C ){
				System.out.println("Yes");
				break;
			}
			if( A==C && B!=C ){
				System.out.println("Yes");
				break;
			}
			if( i==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