import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        // Your code here!
        Scanner scan = new Scanner(System.in);        
        String As = scan.next();
        String Bs = scan.next();
        String Cs = scan.next();

	    int A = Integer.parseInt(As);
	    int B = Integer.parseInt(Bs);
 	    int C = Integer.parseInt(Cs);

        if(A==B){
            if(A==C){
                System.out.println("No");
            }else{
                System.out.println("Yes");
            }
        }else if(B==C || A==C){
                System.out.println("Yes");
        }else{
                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