import java.util.*;

class Main{

    public static void main(String[] args) {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int C = stdIn.nextInt();

        if(A==B && A != C)
            System.out.println("Yes");
        else if(A==C && A != B)
            System.out.println("Yes");
        else if(B==C && C != A)
            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